20% Vitamin C + E + Ferulic Acid Serum.

"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 is 20% ascorbic acid. This is a great dupe to Skinceuticals C E Ferulic. I love that this is much cheaper than Skinceuticals CF 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. But you got three powerful antioxidants, those three we mentioned 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. So, this made the 2025 list because it is really impressive. 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."

"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 like Skin Ceuticals C E Ferulic 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 out there saying that this has irritated their skin, which to me is great. You know, I want patients to be able to use this on a consistent basis. I would say use it in the daytime before your sunscreen to protect yourself from all of that free radical damage. Vitamin C is a powerful antioxidant to battle against that because it can really age our skin, and studies have shown ascorbic acid can actually reverse photo aging. It's only like $24, $25 at your local store."

"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."

"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."

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

"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."

"With this one, don't go wild and put 12 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. I think this is the best product that they have to offer. I love it. I like the 10%, I like the 20%. It really just comes down to individual skin sensitivity and needs. Both work really, really well. 50% 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 do use the code to get that 50% off. 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 Skincare, they have a 20% vitamin C that's a really good affordable option. If you don't have very sensitive skin, eloscorbic 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."

"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."

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

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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."

"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%."

"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."

"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."

"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."

"This is by Timeless. Timeless just launched. The reason why they gave me this, they just they're now at Target. It's effective skincare. I met the owner, Veronica. Lovely, lovely, beautiful person. But there's lots of different vitamin C's on the market, everybody. It's all about like 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, the sad thing is one of my favorite vitamin C products, um, I don't use anymore because of the delivery system. If you are opening up your vitamin C and getting it out this way, every time that..."

"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."

"The vitamin C brightens and smooths skin."

"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 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."

"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."

"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."

"I love how they have different size options in their pumps. 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, 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."

"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."

"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."