20% Vitamin C + E Ferulic Acid Serum.

"Timeless 20% vitamin C serum with vitamin E and ferulic acid is another great option if you want to go with the l-ascorbic route. It just has an airtight pump. A lot of you have mentioned in my videos, whether here, TikTok or Instagram, that you're a fan of Timeless, and I'm very surprised how they have formulated a great product that's only about $25 to $28. So bravo to Timeless for making an affordable, effective product that people find tolerable, does not sting their skin or cause irritation, which is huge because you want to be consistent with your vitamin C serum for at least 2 to 6 months before you start seeing improvement in your dark spots, the glow, the skin brightening. You want to stay with your vitamin C serum even after that six month mark just to keep getting continued results."

"If you want to go for something even stronger timeless is very affordable like 25 to 30 bucks for that one and it's 20% ascorbic acid with vitamin E and ferulic acid."

"Timeless has a 20% L-ascorbic acid plus ferulic acid and vitamin E. Great stuff. Patients and my viewers like that product quite a bit."

"I've had success with those light freckles being lightened by vitamin C serums. And I always say use it in the morning. You can use it at night, but it does boost the sun protection abilities of sunscreen. So I always say apply it in the morning and then apply your sunscreen after that to protect your skin from oxidative stress you might get from sunlight and pollution."

"Timeless has been really nice and affordable and a lot of my patients and my viewers, my friends out there have commented have had good experiences with that."

"Timeless makes a nice vitamin C serum that's 20% ascorbic acid. It's a great dupe to Skinceuticals C E Ferulic. I love that this is much cheaper than Skinceuticals C E Ferulic but works very well."

"It's 20% ascorbic acid, ferulic acid and vitamin E and I don't know how they keep the price down in such an affordable range. I really appreciate that. You got three powerful antioxidants [...] that work synergistically to stabilize each other but also brighten the skin. You also have sodium hyaluronate or hyaluronic acid to help plump the skin. It's been very effective for my patients and for many of you. [...] If you want a budget vitamin C serum that absorbs well, it's lightweight and also this accommodates all skin types from dry skin, normal to combination and oilier skin types."

"Don't keep in your beach bag and do not keep in your car cuz it'll get this dark syrupy color. You want it to stay a nice light orange to yellow. If it does get dark, you can still use it. Still should be okay, but the efficacy might be going down. So, try to keep it preserved cuz this is very expensive. [...] This is more of the big guns, the black belt advanced users."

"This is a new product that I discovered last year, it's Timeless [...] 20% Vitamin C + E + Ferulic Acid Serum. We've all seen this very familiar combination where you have vitamin E and ferulic acid combined with your ascorbic acid to help stabilize and boost the brightening effect. So if you have dark spots on the face you want to reduce those dark spots, I like ascorbic acid a lot but it can be very expensive and or could be quite irritating, so some people are very sensitive to ascorbic acid. But what I like about this serum is that it has that familiar vitamin C, vitamin E, ferulic acid smell reminiscent of the more expensive serums [...] but does not come with that $170 cost. [...] I've always liked how I've tolerated it well. It feels nice and lightweight. I'm able to layer other skincare products, especially sunscreen, over this very well. [...] I have not had a patient or a viewer saying that this has irritated their skin, which to me is great. You want patients to be able to use this on a consistent basis. I would say use it in the daytime before your sunscreen."

"Timeless is a very affordable option with the C, E, and F."

"Timeless has a nice ascorbic acid and vitamin E and ferulic acid formulation that you can get very affordably for like $25. I actually like Timeless their product better than SaraVe's."

"You can find it in a more affordable option like Timeless. That has ascorbic acid. But if you have sensitive skin, go for something with a vitamin C derivative."

"I've tried their 20% vitamin C, ferulic acid and vitamin E. They work synergistically together, those three ingredients, and that's why you see them in skin optical C, ferulic, or dermatology C+F. Those three work together and help reduce dark spots, but the vitamin E and ferulic acid help stabilize your ascorbic acid. A lot of people do like it in an airtight pump, it's very easy to dispense instead of a dropper bottle, and it has that familiar ascorbic acid smell. Check this one out, it's only like 26 bucks, it's very affordable, and you get the 20%. There are a few studies out there that do show 20% ascorbic acid really can reverse photo aging."

"It's a nice serum that brightens the skin. We love vitamin C because it helps reduce dark spots and thus brighten the skin by having less dark spots on the face, light will reflect more efficiently and effectively off the skin and evenly off the skin, mimicking a glow. I like to use that in the morning to help protect our skin from free radical damage from the sun and pollution. [...] The Timeless vitamin C serum has 20% ascorbic acid, vitamin E, and ferulic acid that help synergistically work with vitamin C to reduce those dark spots and help stabilize it as well. They work as a really dynamic team. It's a trio that I love seeing in my serums, and Timeless has done a great job. The smell of it is just very familiar and reminds me of ascorbic acid-containing serums from other brands I love. [...] It's in a nice convenient airtight pump and it has impressed me."

"I like the C E Ferulic because it's also backed up by vitamin E and ferulic acid antioxidants that help boost the efficacy of the serum to help with stability but also brighten your skin even more."

"You can do vitamin C serums. We talked about vitamin C serums a ton on the channel. [...] Timeless is a great over-the-counter vitamin C serum with ascorbic acid. Doing that in the morning and then sunscreen can help brighten the skin."

"Timeless skincare, this one has a 20% vitamin C, ferulic acid and vitamin E blend. [...] I'm quite impressed that it's only under $20 for this 20% vitamin C serum. It is very lightweight, it's very liquidy but it has that familiar vitamin C smell. [...] It has hyaluronic acid as well as L-ascorbic acid, vitamin E and ferulic acid, so very good to have ferulic acid and vitamin E to help stabilize and potentiate the vitamin C effects. I've been enjoying this one and so far I've been liking it."

"Timeless is a very affordable option for a vitamin C serum."

"Timeless is a very popular brand in my comment section. A lot of people are raving about that twenty-dollar serum that's 20% [L-ascorbic] acid."

"Timeless vitamin C serum has elcorbic acid in it as their vitamin C. That's the active form. It's great, but it has to exist at a really low pH to remain stable. That means it very frequently will cause a stinging sensation on the skin. It's not as stable and it's harder to tolerate."

"This is a great example of a super budget friendly vitamin C serum that really works. It's very similar to the Skin Suiticles formulation, but this has 10% vitamin C in it instead of 15 like the Skin Suiticles. You don't need 15 to work. You need somewhere between 10 to 20. 10 is great for rosacea prone or sensitive skin. This also has vitamin E and ferulic acid, the trifecta to stabilize vitamin C and have it work the best."

"Timeless has L-ascorbic acid, the active form of vitamin C. This is going to get you your results the quickest, but you have to be careful with this because it has the highest risk for irritation."

"The 20% version by Timeless is the same product but with 20% L-ascorbic acid. I would say you don't need this unless you are like a rockstar vitamin C user, you are an advanced user, you've used it a long time, you don't have sensitive skin, and you have really stubborn dark spots or wrinkles. What's also really cool about Timeless is they have travel vitamin C in both the 10% and 20%, which is really awesome. If you're on the go, get these vitamin C packets. I also love this option if you are somebody who likes vitamin C in your routine but you do not use it every day, maybe you're only using this a few times a week and you want it to last longer. Once you open it, individual packages are great for that."

"Timeless vitamin C also with vitamin E and ferulic acid. [...] I have used both of these serums over time and I can tell you that the $182 serum does not work any better than these well formulated and stabilized vitamin C serums. So if you are on a budget or even if you're not, do not overspend on a vitamin C serum. This is a budget favorite."

"This is an incredible product, vitamin C, E, Ferulic. This is always on a Holy Grail list of mine. The reason why I like this is not everybody can tolerate L ascorbic acid, it tends to be more irritating, it has to be at a lower pH, on the skin can be stinging to some people like me. I have really sensitive skin. I like this because it's a nice oil-based serum. If you don't love an oil-based serum, don't get this, you will not like this. But I have found this really nice. The oil finish on this is really good for my skin barrier, it's very hydrating and it feels so nice. I've actually moved this to my nighttime routine because I don't like to put makeup over it. This is amazing, it has 14% THD vitamin C."

"20% Timeless same thing as this one but in 20% so that's an option very affordable."

"Timeless makes a very viral product, two actually: a 10% version and a 20% version. It's one of my favorite budget vitamin C serums and a great swap for the SkinCeuticals CE Ferulic."

"For a vitamin C product, choose a product with the L ascorbic acid form and make sure it has a concentration of at least 10 percent and contains the antioxidants vitamin E and ferulic acid. You can try a dupe such as the Timeless vitamin C serum."

"The other one I've been using lately that I love is the Timeless Vitamin C Serum. This is 20% vitamin C, it has ferulic acid and vitamin E as well, so it's really a kind of a dupe for the SkinCeuticals CE Ferulic, which is also a very good product. Vitamin C serums protect against UV damage and pollution, they build collagen, they brighten your skin, they fade dark spots."

"The 20% is fine if you've got a more resilient skin type that isn't too sensitive. These shoes genuinely pump airless packaging. Again, this is really important because oxidation happens when the product comes in contact with oxygen. You minimize that contact down. You slow down the oxidation process. And so going for something in quality packaging like this again is going to slow that right down. [...] If you want to stick with the ascorbic acid, which is absolutely wonderful as an ingredient, please go with [...] Timeless because that's where you're guaranteeing that freshness and you're going to make sure that you're not wasting product that's oxidized and just isn't going to be delivering."

"The Timeless vitamin C is one of my personal favorites. This actually has a penetration enhancing ingredient which is why this just seems to work so well when it comes to fading hyperpigmentation and getting some really quick wins."

"If you've got a very sensitivity prone skin type, go for 10%. If you've got more resilient skin type, go for 20% because you'll get better results. Strength does matter. [...] I love both the formulas. It's a really close dupe for that Skinceuticals C Ferulic. They've actually improved the packaging this year. [...] Previously, this used to leak. It was in an airtight pump that wasn't really airtight. It leaked a lot. It was horrendous. This is their new packaging. So much better. Such a better customer experience. They didn't put the price up, which I appreciate. Usually when brands rebrand or reformulate, the price goes up. Timeless didn't, so they get extra marks for that. A good guy in the skincare industry. And I just love it. This you can't go wrong with. Two strengths. Shop according to your skin's individual sensitivity. Beautiful antioxidants, vitamin C, dupe for Skinceuticals. You can't go wrong."

"I have kind of fallen increasingly in love with over the past 2 years, and that's the Timeless vitamin C. This is in the hall of fame for so many different reasons. First of all, the packaging. Truly airless pump packaging. So, if you like that style of packaging on your vitamin C, I think Timeless do it very, very well. I love the fact that you have two strengths. We've got the 10 here, which I think my skin probably prefers, though I am dabbling with the 20. [...] But there's two for each. If you got sensitive skin, go for the 10. If you want those quick results, go for the 20. This has a beautiful blend of antioxidants alongside that vitamin C, and it's fresh, fresh, fresh. They sell millions of units of this, so you know their turnover is strong. It's not going to be sat on a dusty warehouse shelf. Freshness is key with vitamin C, and this ticks a lot of boxes. Great price point, great packaging, great formulation, two different strengths."

"Timeless is a great affordable example of getting vitamin C into the skin effectively. They do two strengths, the 10 and the 20, and they actually use an ingredient alongside the vitamin C to enhance the penetration without just relying on the low pH. This does also have a lower pH, but the reason it works so quickly is it combines that with this penetration enhancer for the best results. This is super affordable and also comes in truly airless packaging too. It combines that enhanced penetration, top quality formulation, and airless packaging at an affordable price point. This is one of those drugstore products that really demonstrates we can definitely do vitamin C glow up on a budget."

"From the 20th of November, Timeless, which is one of my favorite skincare brands, doing 50% off everything 20th to the 25th of November."

"Don't go wild and put twelve on order because whilst it is in airtight packaging, you will still get some oxidation if you leave it too long. So I put like a maximum of two on order because you don't want it to be sitting around losing efficacy. Fifty percent off the whole Timeless range, but I think this is the best product that they have to offer. I love it. I like the ten percent, I like the twenty percent. It really just comes down to individual skin sensitivity and needs, both work really really well. Let's be honest, fifty percent off for an already ridiculously affordable vitamin C that comes in the best packaging, that delivers so quickly, and is just an all round superstar product. If you haven't tried this already, give it a go, you won't be disappointed. Just choose your strength based on your individual skin's needs, and make sure you use the code to get that fifty percent off. But now is the time to try it if you haven't already, because it is ridiculously affordable and I'm cheap so I really appreciate that."

"They do a 20% and they do a 10%. Honestly, that's not really a problem because when it comes to vitamin C serums, small differences in concentrations aren't going to make huge differences in terms of outcomes. If you've got a very resilient skin type, go for the 20% which is in a yellow bottle. If you have a more sensitive skin type, go for the 10% in the orange bottle. Both will work in the long term. It'll just be the speed at which you get those results dictated by the strength you go for. Great pH for maximum absorption. Also has a penetration enhancing ingredient in here which is amazing if you're looking to just double down on the speed at which you get your results. Just nice blend of antioxidants and it comes in an airless pump. If you're somebody that likes your airless pump packaging, this is a really great option, and that will extend the shelf life of this vitamin C from 3 months to something like four or 5 months."

"This is the 20% in the smaller bottle. They do a larger bottle. [...] Generally speaking, 10% better for sensitive skin, 20% better for resilient skin that wants quicker results. You get antioxidants and vitamin C's together in this beautiful packaging, beautiful formulation, the best skin suit dupe out there. Skin suit is like £130. This is something like 19. [...] Don't always feel like you have to go for the larger size. How much vitamin C you get through matters. I'm somebody that uses it every day. I've got quite a big face. I get through a lot of vitamin C. So, I tend to get the larger size because it's still fresh by the time I finish it. If you're somebody that maybe uses your vitamin C a couple of times a week, maybe you have a smaller face than me and you don't get through it as quickly, don't be afraid to go for the smaller size because ultimately vitamin C works best when it's fresh. So go with the size that meets how much you're actually going to use it and that way it keeps fresh for longer."

"One of my personal favorites is the Timeless vitamin C. They do a 10% and a 20%. Both of them contain ferulic acid alongside that vitamin C. When you're reaching for a vitamin C, it has ferulic acid in it too because that just means you're going to get more bang for your buck. It's going to last longer. It's going to oxidize slower. It's going to be effective for longer and save some of our hard earned coin."

"This is the Timeless Vitamin C. There's two strengths, 10% and 20%. This is an affordable yet hyper effective product. It also comes in an airless pump package. So if you're somebody that still wants that airless packaging, this is a great affordable option to reach for. I love Timeless and this is one of my favorite products for them. The formula has antioxidants alongside the vitamin C, which will help prolong the lifespan of that vitamin C and also double down on some of the benefits you're going to see. It's staying fresher for even longer and you're doubling down on the protective nature of the ingredient."

"The Timeless Vitamin C is super fresh because they sell millions of units, so they're always churning them out, manufacturing them. [...] This actually uses multiple forms of vitamin C to keep things super fresh, super stable, but also super potent. This does pack a punch. So I would say you need to be an established vitamin C user in order to incorporate this. If you're a beginner, go for one of the other options. [...] It is a little bit higher potency, so it's not going to be suitable for people with super sensitive skin or beginners. But if you want to level up and step it up, this would be a great product to achieve that."

"I adore the Timeless vitamin C's. These are all fantastic options."

"Timeless vitamin C, this is the 10% version which is similar if not exactly equivalent, is a great option that's easy to get your hands on in the US in particular and a great product. I love this because again it's got those antioxidants alongside it."

"I love the Timeless vitamin C one of my personal favorites. [...] These two together four times the results very little additional effort."

"Timeless Vitamin C uses ascorbic acid but they've changed their packaging to make it truly airless and airtight, which minimizes oxidation and slows it right down. You'll get about 5 months to use this product before it oxidizes versus a standard packaged vitamin C. It's [...] super inexpensive and budget friendly, showing that if you want advanced vitamin C results, you don't have to break the bank."

"The Timeless 20% Vitamin C serum typically costs under $25 and has that same holy trinity of antioxidants, vitamin C, vitamin E, and ferulic acid. It has a lightweight, watery texture and comes in a pump bottle, which I really appreciate. [...] This one has 20% l-ascorbic acid, which for some people is going to be amazing and their skin's going to tolerate it super well, but for others may be too irritating. I find this serum works really well for me for about a month and then as I continue to use it, my skin starts to feel a little bit sensitive. It's nothing horrible. [...] If you want that skin-soothing vitamin C ferulic effect without the price point, this one comes the closest to doing that."

"Another popular dupe is the Timeless 20% Vitamin C + E Ferulic Acid Serum. So slightly higher than the 15% that we see in the original, but a lot of people actually like this one better because it comes in a pump bottle rather than a dropper. And if you don't have sensitive skin and that extra 5% increase in vitamin C isn't going to be problematic for you, it's another great alternative and it'll run you like 27."

"The Timeless 20 Vitamin C Ferulic Acid Serum is a really affordable vitamin C option. It has 20 percent L-ascorbic acid which is amazing if your skin can tolerate that level of ascorbic acid, but not everyone's will be able to. It has ferulic acid as well. This serum has a lot of potential and has powerhouse ingredients in it. It always is going to come down to what works with you and your skin and your needs."

"Similar to the SkinCeuticals CE Ferulic, both of these formulations have L ascorbic acid as well as vitamin E and ferulic acid, and vitamin E and ferulic acid really sit there as stabilizers of the L-ascorbic acid. The Timeless formulation comes in an airless pump in a slightly thicker inconsistency. If you're interested in incorporating ascorbic acid into your skincare routine and you're like I don't know if I want to go all the way to SkinCeuticals, I think both of these are nice options."

"With Timeless, I mean, I think really the go-to is their vitamin C. Like they have a C E ferulic basically a vitamin C and ferulic acid at 10 and 20% that really is on par with the expensive vitamin C's that are out there. Yeah, I love the 10%. So, if you're someone who hasn't tried a vitamin C and you want to try a classic tested formula, I would get the 10% vitamin C as an intro."

"Timeless Skincare, they have a 20% vitamin C that's a really good affordable option. If you don't have very sensitive skin, [L-ascorbic] acid is a good option for you."

"The Timeless vitamin C that's a 20% vitamin C with E and ferric acid at a much more affordable price point."

"This is a great vitamin C serum. It's a watery serum with a nice formula. The [...] smell comes from benzyl alcohol, which is a fragrant alcohol, [...] and it's canceling out a little bit of that smell that you get from the ascorbic acid."

"It has vitamin E and ferulic acid, [...] copying that Skinceuticals formulation, and it is 27 bucks, which is like [...] a ninth of the price of the Skinceuticals one. Aesthetically it's nice. If you had 30 bucks and had to pick one vitamin C, it's that one. Timeless vitamin C for sure."

"A good affordable option is the 20% vitamin C from Timeless."

"Timeless has a great vitamin C that's available at Target for this."

"A good affordable option is the 20% vitamin C from Timeless."

"There's a wide variety of vitamin Cs on the market at various price points, from $180 down to $10. I think a really good middle price one would be the one from Timeless, a combination of vitamin C, E, and ferulic acid. I really like the 10% one, I think that's a great one to start. It's not as irritating as the 20%, but it's going to get the job done."

"There have been some vitamin C serums that have come in the $30 range, Timeless and The Ordinary, that are using the C E ferulic acid combinations and are great products."

"They have two different formulas. Their main one is 20% ascorbic acid, vitamin E, ferulic acid, sodium hyaluronic, but they also have a 10% version as well. Timeless is pretty good. It's 26 bucks."

"Number two is the Timeless Vitamin C + E Ferulic Serum, which is twenty seven dollars. I don't have the bottle for it, but they have two formulas, one with twenty percent of ascorbic acid, one with ten percent ascorbic acid, and they both also contain ferulic acid, vitamin E, and panthenol."

"I don't think I use Timeless skincare serums which I have in the past I don't now. They're concerned because they received products that were not very new or not very fresh, it was at the end of their shelf life. And even more interesting, the company told them they used to use batch codes and they're not going to use them anymore to streamline the processing. If you have batch codes and manufacturing dates then people can see how old it is, and if you don't want people to see how old it is, you just get rid of that. So this person got one that was already over a year and a half old, their customer service not super helpful to them. The main recommendation they had was to purchase it through their company instead of other websites. I think this is the biggest issue with Timeless. They grew so fast. I've reviewed it, I've tested it, I've tested other products from them. I think they grew too fast."

"I like Geek and Gorgeous better than Timeless, but they tend to manufacture as fresh too."

"In terms of fragrance, this is fragrance free, no scent to it. Sorbic acid typically has its own kind of natural smell which some describe as hot dog water or metallic, and it has a little bit of that, but there's no added fragrance or citrus or essential oils, which is a good thing for your skin, especially for sensitive skin. In terms of denatured or drying types of alcohol, the Timeless does include benzyl alcohol, they use it as a preservative. It's not a very big amount, but benzyl alcohol can also be a perfuming ingredient and some people can be sensitive to it in large amounts, but this one's a very small amount. I'll also say the Timeless has an airless bottle, which in my opinion is just a little bit better, it protects the product from exposure to light and air. Every time you open a jar-type bottle it's exposed to air, which oxidizes it slowly, so the Timeless bottle is a little bit better, and thankfully this newest version so far has not leaked yet."

"I also want to mention the Timeless 20% Vitamin C + E Ferulic Acid Serum. They also have a 10% version."

"The Timeless skincare 20% vitamin C serum is [...] another one I've repurchased a handful of times. It's worth checking out."

"The Timeless 20% Vitamin C + E Ferulic Acid Serum retails for about twenty four dollars. I like that they have a 20 option or a 10 option, also has ferulic acid and vitamin E. The one thing I miss is the sweet spot with ascorbic acid tends to be 15, so with this you're either going a little bit high which could be irritating or going a little bit low which, you know, low and slow sometimes is the way to go. I like that they've changed their packaging so it's now a glass bottle with a pump, so it's a little bit more sophisticated packaging and it doesn't leak like the other one did."

"Timeless has really good vitamin C products. These are 10% ascorbic acid as well as a 20%. The yellow one is the 20%. It smells like hot dogs, it looks orangey amber, it stinks. It comes in an opaque pump which I prefer to a dropper even though I know that a pump and a dropper both get a little bit of air in it. I still think the pump is overall better. That retails for 24 bucks."

"I absolutely love this vitamin C serum. It's extremely affordable. It is the active form of vitamin C and it comes in a pump. So you're not dealing with a dropper and it's not going to oxidize fast. [...] If you've ever bought a skin care product with vitamin C, it turns brown pretty quick and that just means it's oxidized. We got to toss it. It's not going to work. At least here it's in a pump. That doesn't mean it has zero exposure to air, but the exposure is much less and therefore is going to oxidize much slower."

"This is the Timeless skincare line that is usually found at drugstore. You're going to have your 20% vitamin C and your 10% vitamin C. [...] This is ascorbic acid, which is the active form of vitamin C. It is also combined with ferulic acid and vitamin E, which is the classic combination that you think of when you think of skin serum vitamin C ferulic. It is a very clear lightweight serum that smells like hot dogs, similarly to the C ferulic line, but I love that it comes in an opaque pump and not a silly dropper, so it is definitely winning when it comes to packaging and when it comes to the bang for your buck in that sense because it only retails for $27. Now, ascorbic acid is not for everyone. It can be very irritating, it is hard to formulate, and it is not one that lasts, so even though it isn't an opaque pump you probably do want to use it up [...] in a time sensitive fashion."

"If you don't want to break your bank you can get Timeless 20% Vitamin C + E + Ferulic Acid Serum. 10 if you are sensitive, 20 if you want to go wrong and strong, anything above 20 is useless you do not need it."

"Timeless Vitamin C at 24 bucks is a 10% active vitamin C, L-ascorbic acid with vitamin E and ferulic acid. [...] It's a great, very great price point and people love vitamin C, but L-ascorbic acid, which is the active form of vitamin C, can be irritating for many. Hence why I don't necessarily recommend it, especially if you have hyperpigmentation, because you don't want to make the hyperpigmentation worse."

"The yellow one which is at twenty percent, you do not need to go higher than 20 percent. These are good dupes at affordable prices for the active form of vitamin C. It is pretty much the same, watery consistency. It smells like hot dogs so you can't save yourself from that, but it comes in a pump which I much prefer to the dropper, in an opaque tube as well, so win-win."

"L ascorbic acid is the active form of vitamin C and the most irritating form of vitamin C when you combine that with an irritating ingredient whether it is an exfoliating acid or a retinol or whatever it is it's going to have the potential of being slightly more irritating together and if you are sensitive you probably do not want to combine the two."

"Timeless, I learned it from all of you guys, 20 percent ascorbic acid. It's very nice and it is affordable."

"You all have been shouting in the comment section that you love this Timeless brand. They have two types of L-ascorbic acid, a 10 percent and a 20 percent, and they retail for $26 each. It's also combined with vitamin E as well as ferulic acid. They do not specify the percentages and they have hyaluronic acid in it. If you're sensitive and you're trying to use an L-ascorbic acid and it's within your price range, start at the 10 percent, do not start at the 20 percent. They did it right—it comes in a pump, it's clear, it's protected, it's opaque. They're not trying to sell you on you acting like a chemist, so I like the fact that they come in pumps."

"They also have one of my favorite 20% vitamin C formulas. If you have oily skin, I don't think you're going to like this formula."

"Sometimes in the summer and sometimes in the winter months I might switch to Timeless. It's a little bit more of a viscous vitamin C but it's great. It has vitamin C, vitamin E, and ferulic acid, so that helps stabilize the vitamin C because L-ascorbic acid can be pretty unstable."

"I finished up my Timeless which was great. It was a really nice vitamin C serum."

"I occasionally purchase the Timeless vitamin C which is 20% but I do have to be careful when my skin is slightly sensitive it will get kind of irritated by that level of vitamin C and I don't see much of a brightening benefit difference between this 15% formula and the 20% from Timeless. The Timeless formula is a little bit more viscous so if you have oily skin I definitely do not recommend the Timeless vitamin C."

"The next step for me is a vitamin C. This is the 20% L-ascorbic acid formula from Timeless. Ascorbic acid is great for antioxidant protection, lightening and brightening, which we definitely want to do year round."

"I know when I was using Timeless Vitamin C, I had to be really careful not to get that on my nails because it would definitely yellow them. Basically, like overnight, I would have yellow nails."

"My first treatment step is almost always a vitamin C formula for lightning and brightening and antioxidant protection especially in my morning routine and I've transitioned from the Timeless which I use this summer at 20% L-ascorbic acid to a little less irritating of a formula for the winter months when my skin is a little bit more sensitive. [...] The vitamin C is L-ascorbic acid which is the gold standard at 15% in this formula and it's a higher percentage at 20% in this formula that's why I transitioned into a lower percentage. I just find in the winter months I tend to get a little bit more eczema which can be really stingy when you put on vitamin C so this is just a little bit more forgiving. Timeless also makes a formula at 10%."

"Timeless is a vitamin C that I use more in the summer. It's a little bit more viscous, not great for oily skin but perfect for dry skin. It is fantastic, it is 20% l-ascorbic acid, so you do want to do a patch test before you try this out. Timeless is having a 50% off sale sitewide."

"For serums choose an antioxidant rich serum with vitamin C, it will help brighten your skin and reduce dark spots. Timeless C E Ferulic Serum is a great, more budget friendly option."

"For normal skin I recommend Timeless 20% Vitamin C Serum. It's similar to the Maelove serum but this one has 20%, which is a pretty high dosage for vitamin C, but normal skin can tolerate that 20% so I'm not afraid to recommend it. It has the potent ascorbic acid, vitamin E, ferulic acid, and hyaluronic acid to really give you that well balanced formulation, with the vitamin C boosted by these ingredients, so you really can't go wrong with this."

"I reviewed the Timeless vitamin C serum for you guys a while ago and it's okay. People want to call it a dupe for the SkinCeuticals one because it has the same ingredients, but I don't really go after vitamin C serums in general given the stability issues they have, and my skin does get irritated by a lot of them."

"I reviewed the Timeless vitamin C serum and I'll link it down below. If you're looking for a less costly alternative, you can use it like you use niacinamide, with other ingredients like retinol."

"I am still loving this. I use this on every part of my body every morning. Skincare only works if you're consistent with it."

"This is a Timeless vitamin C, super cheap. I got this on sale. [...] I've got like five or six of them. Why? Because it's in a big bottle. It's in a pump. I don't like when you have to twist something off. Every time you twist something off and get it out, you're exposing it to the air. So you're basically oxidizing it a little bit. So an airtight pump for a vitamin C, super important. [...] An L-ascorbic vitamin C is too acidic for peptides. It breaks the bond. [...] If you don't use peptides, this is a great product head to toe."

"Morning I always use the Timeless 20% Vitamin C + E Ferulic Acid Serum. I use it on my face, my whole body."

"In the morning you want to do a vitamin C serum. I like Timeless because it's very cheap, relatively cheap, and I think you can get them on Amazon for like two at a time and I think they're like 20 bucks. I [...] use this for everything [...] from my abdomen up."

"This is Timeless Vitamin C. It's very, very thin. It rubs in and absorbs so easily, it's so easily spreadable and easy to absorb. What that does is it helps with discoloration, but it also is an environmental protector that accumulates in your skin. It's like taking a bunch of vitamin C pills internally. It's kind of the same as putting it on your skin. I use this every single morning from head to toe. When you still have a little bit of water on you, it spreads really, really easily."

"I like that they came out with this big giant thing of vitamin C. [...] Vitamin C and red light therapy work really well together. [...] When you add this with damp skin, if you do a vitamin C serum with damp skin you'll notice that it will spread so much easier."

"Vitamin C is an antioxidant for the skin. I have a full body one for Timeless now. [...] I have an entire bottle of this because I use it while I'm doing red light therapy. [...] The vitamin C is the [...] active ingredient. In the morning it's an antioxidant. You don't want to use a retinoid in the morning, right, you use that at night, so in the morning it's an antioxidant."

"The vitamin C serum that I like is timeless only because you can get a big bottle of this. I put this on when my skin is damp, straight from my cold plunge while I'm here in the light therapy. [...] As I'm drip drying and I'm doing red light therapy, this is how [...] you compound things, you do things that are like oh I'm going to do red light therapy while I'm literally [...] I'm also doing my skin care at the same time."

"It's a 20% vitamin C e ferulic acid. This, I believe, is like under I know it's I think it's like 20 bucks. It's not a lot. It's not expensive. It's cheap enough. Look, it's a serum. So, we're talking water, right? It's it's water. It's like a watery substance. And that's when when we're talking about like layering your skin care, the watery stuff goes on first. The watery stuff goes on first. But that is an antioxidant that helps protect your skin from all the environmental pollutants and also UV rays and everything else. It helps to increase your skin barrier. It makes younger functioning skin."

"Vitamin C is an antioxidant for the skin. I have a full body one for Timeless now, and I have an entire bottle of this because I use it while I'm doing red light therapy. [...] In the morning it's an antioxidant, which is the active ingredient."

"If you're using like a lightener or a brightener, the ones that I use over the counter are vitamin C. I like Timeless because it's cheap. Both of these brighten and kind of lighten the skin."

"I take some squirts of Timeless vitamin C serum and rub that on my whole body while I'm still getting blasted with red light therapy. It will spread a lot easier on your body when you're slightly damp. The brand is super affordable."

"For the body, I cover my whole body with this Timeless [...] vitamin C. [...] The strength of the vitamin C does not negate the peptides. It needs to go on straight away, clean, dry skin. And then it helps with all of those senescent cells. So it really works to get rid of the old collagen, get rid of the old stuff that is decrepit so that it makes room for the new stuff to happen."

"I'm doing a vitamin C serum and not just for my face, literally whole body. [...] This is not expensive, you guys. And now they made it in a 4 oz bottle. It's very, very watery. [...] I mean, it's literally like water. You don't need much. A couple squirts and you rub it on your whole body, everywhere. Literally head to toe is how I use this. It's an antioxidant, so it's great for your skin. It's also an active ingredient. It helps to even out that skin tone and brighten the skin, more even complexion, which as we know with fluctuations in hormones with age, one of the ways that we can tell, one of the signs of aging skin is that discoloration. [...] But that discoloration can be helped with things like vitamin C."

"Vitamin C is an antioxidant. That's why we use the Timeless skincare in the morning at the retreat, right?"

"Timeless does a good job in putting this in an opaque bottle. You want to make sure that you're not storing a vitamin C that oxidizes in the sunlight out in the open. So you want to keep things like this in the drawer."

"Vitamin C is a timeless product. There's lots of different vitamin C's on the market. [...] It's all about [...] how good is it? And is it in a pump? Because if you're doing a vitamin C in a dropper like this, every time you open this up, you're exposing it to air and oxidation, which breaks down the [...] vitamin C and makes it less effective."

"This is a really good product. Timeless is a really good company. They're not making handbags. They're not making eyeshadow. They're not making clothing. All they do is skincare, right? [...] This is effective and it's super cheap and you can get it in [...] a big bottle of this because your skin doesn't stop here. I use this on my entire body from head to toe. Entire body."

"I really like this one by Timeless, this is a 20% vitamin C Ferulic acid with vitamin E in it. I like it because it's affordable and super cost effective. Not only do I use this on my face and my neck and my chest, I use it on my arms, I use it on my abdomen, sometimes I'll even use it on my legs. It's very very watery so it spreads evenly. It brightens up any skin tone, so it doesn't lift the spots away but it evens out skin tone. It acts as an antioxidant, it accumulates in your body so that it's more of a sun protection as well."

"I use this sucker on my whole body because it's cost effective. [...] I use four times a week. That's a perfect amount of time. You can actually use up to seven times a week if you want. But I'm usually around four or five times a week myself."

"I use this sucker on my whole body because it's cost effective. [...] I use four times a week. That's a perfect amount of time. You can actually use up to seven times a week if you want. But I'm usually around four or five times a week myself."

"This is the 20% vitamin C ferulic acid with vitamin E. I use this on my whole body because your skin doesn't stop here. I use this on my whole body while I'm doing red light therapy because it's an antioxidant and it helps to brighten the skin, fine lines and wrinkles. They have research that shows it does help to stimulate collagen. It helps with free radicals. You want to make sure there's a lot of pollutants and a lot of stuff in our water, lot of stuff in our air, UV, all of that environmental stuff. You want to make sure that you are treating your skin in the morning with something that's actually going to be helping with all of those. It evens out skin tone. You can get Timeless in a bottle like this for under 20."

"In the morning I'll do a vitamin C serum which also helps to brighten. So this one is by Timeless. I like this because it's effective. It's a 20% vitamin C ferulic acid with vitamin E which also helps lift sunspots, so you're getting a lot of bang for your buck here."

"I've been using Timeless Skincare's 20% vitamin C with ferulic acid and vitamin E [...] on my entire body, head to toe, [...] for years, and I love it. They make it in a big, economical 4 oz bottle you can get at Target or on the Timeless website. It's very effective and cost effective to use for your whole body, not just your face."

"I have been using the Timeless L-ascorbic acid vitamin C from head to toe, including my neck, for a long time. It neutralizes UV induced free radicals, evens out skin tone, and has a cumulative effect that improves how the skin functions over time. The caveat is you cannot use it together with a peptide because the L-ascorbic acid will break the peptide bond and neutralize it, so I only use this vitamin C on days I am not doing peptides. It is also not cheap, this one especially."

"I've been a Timeless vitamin C girl since they came out with this product. If I could bathe in this, I would bathe in this. I get the big bottle because I use it head to toe, not just my face, because your skin doesn't stop at your neck."

"This is the Timeless vitamin C, the best vitamin C on the market. The L-ascorbic acid has transformed my body skin. I've been putting this on my entire body for about three or four years now and it has transformed my skin. I've been a fan of this brand for so long, I absolutely love it. If I could bathe in this in the morning I would, and if I could bathe in it in the evening I would too. It works well with retinoids at night, though it doesn't always play nicely with peptides."

"I have used Timeless for years and years and years. I'd say about 12 years I've been using Timeless. I love their vitamin C serum."

"The first thing that I use every morning after I wash my face is my Timeless 20% Vitamin C + E Ferulic Acid Serum. It's the type of vitamin C that is the most proven with the scientific research. This is an ascorbic acid based vitamin C serum. I love this one. I've been using this for 10 years. There's really no change here."

"This is a 20% L ascorbic acid based vitamin C serum. It's very watery liquid. Vitamin C is an antioxidant, it's one of the most potent antioxidants that we can use in skin care, and L ascorbic acid versions of it are the most effective in your skin. They are proven to help to brighten your skin, to fight free radicals that are produced by exposure to sun and pollution. Those are things that destroy our DNAs. It's doing wonders below the surface that you may not even be aware of, protecting your collagen, and that's the name of the game in anti-aging."

"My favorite product is Timeless 20% Vitamin C + E Ferulic Acid Serum. It's a great serum that really helps to wake up your skin, it starts to hydrate, and it really protects your skin from environmental elements during the day, and it helps with anti-aging as well."

"Another hit alltime fave that I've used up is my Timeless 20% Vitamin C + E Ferulic Acid Serum. This is my favorite of all time of all of the vitamin C serums that I've ever used."

"The first product I put on in the morning is my Timeless 20% Vitamin C + E Ferulic Acid Serum. Vitamin C is a really great antioxidant, it fights free radicals from sun damage, from pollution. Free radicals damage our DNA, they break down our collagen, they break down our elastin, and this helps to fight them. It's an awesome serum. I've been using it for years, I absolutely love it. It brightens my skin, it helps to fade age spots, and it helps to fight wrinkles and it helps to protect my collagen and the elastin that I do have."

"I just thought that this was so clever such a GameChanger something that no one else in the market is doing"

"I've been using the Timeless 20% Vitamin C + E Ferulic Acid Serum. This is an L-ascorbic acid in water-based vitamin C serum. It is formulated correctly. It has to be at the right pH and it has to have the right concentration of vitamin C, also vitamin E and ferulic acid, and it has it all. So this is like my number one vitamin C serum that is my Holy Grail. A couple of improvements that they made this year to it is they put it in a glass airless pump bottle. I know a lot of people in years past had been having trouble with the old plastic packaging, the pump leaking. This one doesn't leak at all. They used to only sell this in a 1 oz size. They started this year selling it in a 1.7 oz size."

"I would bring a mini size of my Timeless 20% Vitamin C + E + Ferulic Acid Serum. This is my go-to Holy Grail vitamin C serum so they make this little half ouncer which is great for travel."

"Timeless is one of my all-time favorite skincare brands. They make the best skin serums. They make my favorite vitamin C serums. This is the 20% vitamin C plus E plus ferulic acid serum."

"The vitamin C serum that I use is from Timeless, it's their 20% vitamin C plus E plus ferulic acid serum. If your skin is too sensitive to use the 20% you could try their 10%, it's basically the same formula just with half the amount of vitamin C in it. I just take a couple of pumps of this on my fingers, I spread it all around my face. I do avoid my eyelids and my lips with this but I put it everywhere else. I also bring it just down below my jawline. I can't put it fully on my neck during the winter, I kind of have to take the winter off from my vitamin C serum but I do use the 10% for the rest of the year on my neck. Then I take a couple more palms and I apply it to my chest and the backs of my hands. All my skin care goes on everything that I want to anti-age so my face, my neck, my chest and the backs of my hands. The ones that I prefer are the ones made with L-ascorbic acid, that's the pure form of vitamin C, so that when you put it on your skin absorbs it and it knows what to do with it. Ascorbic acid is a precursor for making collagen and so you have to have vitamin C in your skin in order for your skin to make collagen in the first place."

"This is at a much higher price point at $89 for 9 ounces, so does it top my Timeless vitamin C as my favorite that's staying in my skincare routine? It doesn't. But if you were looking for the vitamin C serum to be stable in your cabinet for a lot longer, this is a really great product."

"Being able to supplement your ascorbic acid from the outside in is a great way to help your skin to produce more collagen. It's also an antioxidant which means that it fights free radicals and free radicals destroy your collagen. So vitamin C serum protects the collagen that you do have while enabling your skin to produce more collagen. So it is awesome and I love it."

"This is my go-to Holy Grail vitamin C serum. I've tried a lot of different vitamin C serums, I recommend other vitamin C serums, but this is the one that I use every single day and I love it. I like that they offer it in three different package sizes so they make this little half ouncer which is great for travel, then they also have the one ounce size which is the standard one that I buy, but they also offer a 1.7 ounce size so that you don't have to buy it as often because vitamin C does oxidize and degrade over time. I do like the new packaging a lot better. It's in a glass bottle now and it is the best packaged vitamin C on the market. Vitamin C is an antioxidant but it's also a precursor to collagen production so you need vitamin C in your skin in order to produce collagen. Ascorbic acid vitamin C is really important to have on your skin so that your skin can produce more collagen. It's also an antioxidant so it fights free radicals, so all of the damage done to your skin during the day by UV rays and pollution and stress, vitamin C and other antioxidants fight those free radicals."

"Then my other longtime favorite is from Timeless. Theirs is 20% ascorbic acid and it contains the ferulic acid, the vitamin E, and hyaluronic acid. And this is generally around $26.95."

"Timeless Skincare makes some of my favorite skincare products, I use their Vitamin C plus E plus ferulic acid serum, their CoQ10 serum and their Matrixyl 6 serum, and their individual vitamin C packets are so great for travel and amazing."

"I use the Timeless 20 vitamin C plus E plus ferulic acid serum. It's a lightweight watery serum that I love."

"The one I recommend is the Timeless 20% Vitamin C + E + Ferulic Acid Serum. Vitamin C is an antioxidant and it's really good at fighting free radicals in your skin. They damage the collagen and just make your skin look older, and things like antioxidants can fight them."

"My favorite products there are the 20% vitamin C serum."

"My favorite collagen boosting ingredient to use in my skin is vitamin C. Vitamin C is a tricky one because there are so many forms of vitamin C on the market and based on all the research that I've read the only one that I feel like is worth your time and money is an ascorbic acid in water vitamin C serum. The Timeless 20% vitamin C plus E plus ferulic acid serum is my longtime favorite. This is a great one, it's about $26.95 for 1 ounce. They also sell a smaller one, they also sell travel packets, they also sell a 10% for those of you who have more sensitive skin but it's a wonderful vitamin C serum and they will definitely help your skin to produce more collagen."

"This is my number one pick for a drugstore priced vitamin C serum. It's 20% vitamin C plus E plus ferulic acid, and it costs about $26.95. It's a really watery liquid, it's clear, it's so lightweight and so nice. I just love it, I hate to waste any of it. I put it on the backs of my hands every day."

"I'm going to use a squirt of my favorite vitamin C serum to show you what the proper pH looks like on the pH test paper. Timeless is giving a perfect reading of between 3.0 and 3.5, so with this one you're really maximizing absorption, which is the name of the game in skincare. This is my favorite vitamin C serum that I always recommend."

"This is my morning first step in my skin care routine. Vitamin C is so good for your skin but as we know, the only form that's really proven to work is L-ascorbic acid but it has to be formulated just right and there are a few that are formulated just right but my favorite is the Timeless. So, this is so easy to use. You just like put a pump on your hands and then rub it around your face and your neck and any exposed skin and this fights free radicals. I have repurchased this. It is in my cabinet and I am continuing to use it."

"This is a wonderful serum. It really has the right formulation with the right form of vitamin C which is L-ascorbic acid. It's got the ferulic acid, the vitamin E, and the right pH. It's in an airless pump in an opaque bottle so everything is right about this, and especially the price point at twenty-four ninety-five, it's a great product. I use it every morning."

"My vitamin C serum is the first thing that I use every morning. I am still using my Timeless 20% Vitamin C plus E plus Ferulic Acid Serum. This is one of my Holy Grail vitamin C serums. I have a $5 off discount code for Timeless good for your first purchase."

"I always like to take my vitamin C with me on a sunshine summery trip because vitamin C is an antioxidant and it works synergistically with your sunscreen, it helps your skin to fight the effects of the sun's rays that do get through. I always take my vitamin C serum with me. This is one I'm using currently, it's the Timeless twenty percent vitamin C plus E plus ferulic acid serum and this is a nice one because it comes in a half ounce so I like to get this little half ouncer to take with me because it's just smaller than the full one ounce. Since it's an antioxidant it fights the free radicals that are produced in my skin when it is exposed to the sun."

"The only thing that isn't here is my Timeless vitamin C serum which I also brought."

"This is my all-time favorite and the one I use almost every day. It retails for $26.95 for one ounce. It's fragrance free, cruelty free, and vegan. It's a really basic formula that's water-based but contains hyaluronic acid to moisturize your skin. It has 20 percent L ascorbic acid, which is the top amount, and I've tested the pH and it's in the perfect range for absorption. It's packaged in an opaque plastic container with an airless pump dispenser, which helps it last so much longer since air and light degrade vitamin C. This is a very lightweight watery formula that absorbs right into your skin so quickly without any tackiness or greasiness. It has a slightly dewy or luminous finish that I love. It's a really basic formula with nothing extra in there, which I appreciate because I'm very sensitive to botanical oils and fragrances. This will last about three months, so that's under 10 dollars a month. This is a really really lovely serum."

"My third holy grail multitasking product is my Timeless Skin Care 20% Vitamin C Plus E Plus Ferulic Acid Serum. Vitamin C in the form of L-ascorbic acid is like the big daddy of vitamin Cs. It's the one with all the research and evidence behind it showing that it works. What it can do for your skin is that it can help to block pigment production so it can help you to not form more dark spots. It can reduce fine lines and wrinkles and even out skin texture, and it also helps to protect your DNA and to protect your collagen and elastin. Even though vitamin C has been shown to be the big one, it is helped by those other two antioxidants, so they all do their own mopping up of free radicals on their own. But when they're combined, they can actually improve each other's ability to do that by 16-fold. The Timeless is my favorite way to get it."

"I used up one of my Timeless twenty percent vitamin C plus E plus ferulic acid serums, the half ounce size. I love that they sell a half ounce size because this is perfect for travel. This is a great vitamin C serum. Vitamin C is an antioxidant and I prefer the L-ascorbic acid-based vitamin C's because that is the form of vitamin C that's been proven to work in your skin with lots of different studies. This is really easy to use, it's lightweight, it's watery, it soaks right into your skin, and what it does for you is that it brightens your skin, it helps to reduce age spots, and it's also been shown to increase collagen production."

"I put this on my entire face avoiding my eyelids and my lips and I run this down my neck and on my chest and then I take another squirt on the back of my hands and I rub the backs of my hands together. Vitamin C is an antioxidant and it fights free radicals that basically destroy your collagen destroy your elastin break down the stuff that makes your skin youthful and plump and juicy looking. There are a couple other vitamin C serums that I do like a lot I like the May Love one I like the Geek and Gorgeous one I like the Dr Barbara Sturm one so I will link them all below but this is my favorite."

"The half ounce travel size because I did get this to go on my trip and so I took it and it was a nice petite thing that I could bring in my bag and take with me on the trip. So I love that I love it that they offer this smaller size of it. Also, if you have more sensitive skin, they also offer a ten percent concentration of ascorbic acid, so that one's in an orange container. So there are options out there if you have tried other vitamin C serums, they were just too harsh on your skin. You could try things with fifteen, something from Timeless with ten, and that's a good way to go."

"Second to my tretinoin in importance to me is my vitamin C serum. With agency they don't offer a vitamin C serum that's an L-ascorbic acid. L-ascorbic acid-based vitamin C is so important to get in your skincare routine, and so I'm not going to drop this out. If you feel like you can get everything you need in your skincare routine just from using an agency then you could drop everything else, but for me I think it's really important to get these other ingredients."

"This is the Timeless 20% Vitamin C plus E plus Ferulic Acid serum that I've been using for years. It's my holy grail, I absolutely love it. It's $24.95 for one ounce, which is like a dupe for the SkinCeuticals which is like $158 an ounce, so this stuff is awesome. But the 20% vitamin C can be a little bit harsh for some people's skin, so they came out with one with 10% vitamin C for those people who have super sensitive skin. I'm always excited to share anything new that Timeless has because I just love that company. They've been so great to work with over the years and their products are just so fabulous, and I love the results that I've seen on my skin using the 20%."

"C serum that also contains ferulic acid and vitamin E they do have a 10% option as well if you wish to use something at a lower strength the 10% is amazing I've used it many times over the years it's also really effective it does give that brighter complexion but if you want something with a little bit more of that punch go with the 20% especially if your skin can tolerate this strength and be consistent this formula is truly on point it's very thin and lightweight it's like water your skin absorbs it really nicely and it's definitely one of my favorite vitamin C formulations on the market."

"This has to be my favorite because it never disappoints and it performs really well to improve that uneven skin tone and to achieve that brighter complexion. Vitamin C as well as antioxidants can help protect the skin from everyday pollution. I really love using this in my morning skincare routine. The texture is like water, it spreads really nicely across the skin. It comes in a pump-style packaging, the packaging is also glass, and I like to keep this in the fridge to prolong the life of it while I'm using it. If you're looking for a really nice vitamin C serum, I would say look into this. There is a 10% option which is great, but the 20 performs the best on my skin."

"I love this vitamin C serum and it's one of the only vitamin C's that I have been using the longest. I have been using this brand and this product for at least 7 years, it could even be longer than that. [...] Vitamin C [...] is a great ingredient to use in your morning skincare routine because it can help to protect and shield your skin from everyday stressors and pollution, but vitamin C can also help to brighten up your complexion. It can also fade dark spots and discoloration. It targets fine lines and wrinkles. [...] I love this formulation from Timeless because it's effective. They have a 20% [...] L ascorbic acid, which is the purest form of vitamin C. [...] These can be a little bit unstable and can oxidize fairly quickly, so especially if you're purchasing the pump style, you want to use it up as quickly as possible within 2 to 3 months and you want to keep these in the fridge to help prolong the shelf life."

"I love the 20 the best because I really do see a big difference when I'm consistent with these and I have been super consistent with Timeless for the last 6 years actually. [...] It never disappoints. I love how they have different size options in their pumps and their pricing is pretty reasonable and honestly it's very comparable to SkinCeuticals vitamin C but at a lower price. This also contains vitamin E, ferulic acid, hyaluronic acid, very hydrating. It doesn't pill, it's not sticky or tacky and it just works like a dream."

"This one from Timeless is a 20% and they also have a 10% option as well so it won't be as harsh and irritating for some. [...] This one I feel works the best on my skin, my skin tolerates really well to this. There's ferulic acid and vitamin E in here and it's very thin and lightweight and it really does the job to brighten up the complexion. [...] This one is ascorbic acid which is the purest form of vitamin C, the most unstable form and also the vitamin C that I feel works the best and that works the quickest. [...] This is absolutely outstanding. I put a couple of pumps into my hand and apply it in my morning routine."

"I know some vitamin C's can be a little irritating on the skin, this could be for some people, but I do believe that allantoin in here really helps to calm the skin and it just helps to soothe the skin at the same time. So I really love this when I have a lot of post acne marks or maybe my skin is looking a little dull. This is what I go for. I just find this one works the best for me when I'm experiencing a lot of discoloration. Vitamin C can be a wonderful ingredient to really help fade discoloration and to help prevent as well."

"This is the one from Timeless, the 20%, and this is great if you have discoloration or a dull complexion. Vitamin C can help to produce new collagen, so of course as we get older that skin on our hands starts to thin, so it's nice to use products to help build new collagen and to also improve the tone of our skin as well. Vitamin C is great for this."

"You guys know how much I love this formula. This really is effective to brighten up your skin, so if you have adult complexion, let's say you have post acne marks or dark spots, vitamin C can really help to fade these over time, especially a 20% formulation. I love this because it's very lightweight and it's very similar to the SkinCeuticals vitamin C serum, but it's really affordable and it comes in several different sizes. I've never experienced pilling with this serum either, which is why I love this so much. There are some vitamin C serums out there that could pill depending on what skincare products you pair it with, but I just feel like this is a very gentle formulation. Even though this is a 20%, I don't feel like I experience irritation at all."

"I have an empty Timeless 20% vitamin C serum, and this is one of my Holy Grail vitamin C's. I love the Timeless brand, and I really like the 20% specifically, though they do have a 10% option if you wish to use something at a lower strength. I like it because it's very thin, lightweight, it's watery, it absorbs into your skin so nicely with no peeling whatsoever, and it's really effective. It gives that brighter appearance, it treats fine lines and wrinkles. There are many size options to pick from as well, so different price points. I love it, so of course I'm going to continue on with it."

"This is from Timeless. This is their 20% vitamin C serum. [...] It really doesn't matter what type of vitamin C you're using, whether it's ascorbic acid like this, the purest form, or vitamin C derivatives. [...] Vitamin C in general is an ingredient that will help to protect and shield our skin from everyday pollution. These are best used in our morning skincare routines because when we're running errands, we're walking our dog, we're going to work, pollution is going to degrade our collagen. [...] Not only is this going to protect our skin, reserving the collagen, but this is also going to help stimulate new collagen as well. You can use your vitamin C's at night time also if you wish to, but they really are best used in the morning and that's when I use it and it also gives a brighter complexion as well."

"My go-to vitamin C is the pure form ascorbic acid. I love the Timeless vitamin C, they have a 20% and a 10%. If you really want that brighter look in a shorter amount of time, this one gives almost that immediate brightness to the skin within a couple of days to a week from my experience with it. If you have post-acne marks or you have that uneven skin tone and you just want to use this to even out your skin, then I would say try it. It's great. It has vitamin E in here which actually has more antioxidant properties to it, and there is hyaluronic acid. I keep this in the fridge and it's lovely."

"Timeless is the next brand and of course I chose the 20% Vitamin C serum. I find myself using this product the most and I love vitamin C serums especially at a 20% concentration. This is ascorbic acid, the purest form. There's also vitamin E in here and ferulic acid. I like to use this more so in my morning routine and this does a fabulous job to brighten up your complexion. It helps to fade dark spots, post-acne marks, it treats fine lines, but it also protects our skin from free radicals. This texture is like water so your skin absorbs it so nicely. It spreads like a dream as well. I will do about two to three pumps of this, maybe four depending on how I feel. I do bring this down my neck and my chest and I just absolutely love this formula. This is also very similar to the SkinCeuticals CE Ferulic but this is way more affordable and this is just as good. I do have a discount code for you guys as well if you wish to purchase this."

"This is my Holy Grail. This is at a 20% concentration of ascorbic acid. This one also has vitamin E and ferulic acid. Same thing, watery texture that absorbs into the skin really nicely. This one comes in a pump style packaging, whereas the other one comes in a dropper style. I like the pump because I don't have to worry about this oxidizing as quickly. I mean, you want to use your vitamin C up as quickly as possible within a 3 to 4 month time span, especially when it's an ascorbic style of packaging. Also, if you don't want the 20% option, Timeless offers a 10% vitamin C strength as well if you wish to use that, and there are different size options with Timeless as well. So I love these two so much and I highly recommend either one."

"I love the Timeless vitamin C especially the 20%. I like Timeless and I'm still using it. These types of vitamin C's are very unstable and they oxidize very quickly because this is the purest form of vitamin C, L-ascorbic acid or ascorbic acid. [...] Once you open up these types of vitamin C's they oxidize almost immediately so you want to use them up as quickly as possible."

"I have been talking about the 20% for a long time and it's been a staple in my morning skincare routine. You know how much I love this brand and I also really love this formulation of vitamin C as well."

"It's one of my favorite formulations because it works really quickly, it gives that nice glow to the skin, it helps to fade dark spots and post-acne marks. It's very thin and lightweight, your skin absorbs it really nicely and it always layers up nicely with other skincare products including your makeup. [...] Vitamin C is always a part of my skincare routine [...] because it really is a great product to give that nice brighter complexion but it also helps to target signs of aging at the same time. [...] I do like to keep this in the fridge to prolong the life of it as this is a pure form of vitamin C so it does tend to oxidize fairly quickly, so once you've opened this up you want to use it up as quickly as possible."

"Timeless is one of my favorite skincare brands of all time, specifically their vitamin C serum is like one of the best that they offer. This is actually their most popular product if I really had to guess because everybody talks about the Timeless vitamin C. You can purchase their pump style packaging or these single use pouches which is great if you travel a lot, maybe you don't like pump style packaging, you go away a lot on weekends, then this is great to throw in your bag and it literally takes up no room. One pouch is one use so make sure that you put that all over your face, your neck and your chest, make sure you use every last drop. I do keep these in the fridge."

"Timeless has a lovely vitamin C, they have two actually, they have the 20% and the 10%. I love the 20%. I would generally apply the Timeless 20% vitamin C serum first, then I would go in with this afterward because it does have a milky consistency and then moisturizer and sunscreen of course. You don't have to pair the two up together but they do work really well with one another. They're great pairings to enhance results."

"The one that I love is the Timeless 20% vitamin C. When I'm using this in my morning routine I do not use growth factors or copper peptides because according to the ordinary they don't recommend for you to use copper peptides or growth factors with pure forms of vitamin C. [...] I love the results that I see with this serum specifically and I just love how nourishing it is on the skin as well. Great for all skin types. I also put this underneath my eyes as well. I've never experienced issues."

"This is one of the vitamin C's that I have been using the longest so I know that this is effective and that this works which is why I always recommend it. My skin resonates really well with the 20. I see better results, quicker results with the 20 versus the 10, but the 10 is just as good, it's just not as powerful. If you are somebody with more of that sensitive skin type then I would say use the 10% first and then move up to a 20 if that is your goal in time. This is a pure form of vitamin C, ascorbic acid, so this is the most unstable form of vitamin C, but in my opinion it's the most effective, especially if you compare this to vitamin C derivatives."

"Vitamin C really is best to use in your morning routine because it does protect your skin from everyday pollution. If you struggle with a dull complexion or you have some post acne marks dark spots it really does brighten the heck out of your skin. The Timeless vitamin C is one of the best on the market especially from what I have used and you just can't go wrong with this brand. It's really affordable. There's different size options and if you don't want to use the 20% strength which is this then they have a 10% and it's a little bit less potent but at the end of the day it still works really well and you still get great results."

"I love the vitamin C serum at a 20% concentration. They also have a 10% option."

"Timeless has a wonderful 20% vitamin C serum that I always rave about here on my channel. It goes really nicely with coenzyme Q10, so I generally put the vitamin C serum on first then the Q10 afterwards then my moisturizer and then my sunscreen. If you want something that is antioxidant-based for your routines then I would say look into this."