20% Vitamin C Brighten & Firm Serum.

"Not the cheapest product out there, but I'd say it's the fastest acting vitamin C that I have ever tried. [...] If anyone tells you that ethylated ascorbic acid is less effective, it's slower to work, wave this product in their face. This is ethylated ascorbic acid and it works quicker than any vitamin C I have ever ever tried. It is that good."

"This is the Allies of Skin 20% Vitamin C Brightening and Firming Serum. I've been using this for years. It works really, really well and I think it gives you super speedy results, less sensitivity and it's packed full of other beneficial ingredients that really just turbocharge that vitamin C. A huge plus at the moment is Allies of Skin actually have 25% off sale. Their price point is up there, so if you can get 25% off, why not? It's just a fantastic product."

"I think the very best on the market in terms of performance concentration and delivery is the Allies of Skin 20% Vitamin C Brighten & Firm Serum. This is amazing but it does come with a higher price point. I think the formulation in here, how they use that glutathione alongside vitamin C and some other fantastic antioxidants and brightening ingredients, means this is a one-stop shop for hyperpigmentation and I think it's worth every penny that you have to invest to get it. However, like I say, that budget is not going to be for everyone, but this, if you're looking for a one-stop shop with glutathione, I think it's the very best place to start."

"This is the Allies of Skin 20% Vitamin C Brighten & Firm Serum. This is packed full of active ingredients but the key ones are glutathione and vitamin C in high doses to really help you get on top of your hyperpigmentation game, get a more even skin tone and fade any of those dark spots. This is a wonder, wonder product and one of my favorite, favorite vitamin C's."

"Another favorite vitamin C of mine is the Allies of Skin 20% Vitamin C Brightening and Firming Serum. This is actually in a dimethicone base so you can actually measure the pH of this but doesn't mean that it's not working. This is actually the fastest and most effective vitamin C I have ever ever used. Just because the pH might not be what's influen to told you two years ago doesn't mean that your vitamin C is useless and won't work. Just let's go with a brand that we trust and we know it's going to formulate with a quality blend of different ingredients to maximize and enhance the penetration of that vitamin C. Make sure that you invest in a vitamin C that actually tells you the percentage front and center. Brands that promote honesty and transparency, great example I just showcased here: Allies of Skin 20%."

"It isn't the most budget friendly but hands down is one of the quickest active vitamin C's I've ever tried. Not the cheapest brand but everyone that's tried this has turned around and said literally after one use my skin was glowing. It works so quickly because not only does this have a great blend of active ingredients including glutathione but it also has a great delivery mechanism and some technology that just means that vitamin C gets to where it needs to be, works out a little bit quicker and will deliver better results in the long term. Yes, if you're consistent you can get great results from a vitamin C on a budget but if you're impatient I think it's worth paying a little bit more for this serum to get that glutathione fix, to get that technology and that super quick turnaround. I'm not lying when I say a couple of uses of this on a morning and you'll start looking in the mirror thinking okay my glow game definitely is a little bit more on point than it was before and it starts to fade hyperpigmentation after just a week. Because it's in a beautiful silicon base it's not too irritating or sensitizing on the skin."

"This is the Allies of Skin 20% Vitamin C Brightening and Firming Serum. When I get a breakout I bring out the big guns. There are cheaper vitamin C's out there, lots of amazing options, but this is hands down the fastest acting vitamin C when it comes to fading marks and hyperpigmentation, boosting radiance, that I have ever tried. So when I need it I pull out the big guns. I don't mind spending more on this when I need that fast action, and then once everything's healed and done I'll probably switch back to one of my others. But sometimes even though I am cheap I will pay more to get more, and this is definitely one of those cases. I love this one. It's that blend of glutathione, vitamin C, and the potent antioxidants and brightening agents in here which will just eat away the hyperpigmentation. These acne marks will have gone in a flash. And this just feels so, so, so good."

"This isn't cheap, let's put that right out there, this isn't an inexpensive product, but if you have a little coin to spend and you want super quick results, this is the fastest acting vitamin C I've ever found. Couple of uses, your glow game will be through the roof, your hyperpigmentation will already be fading. I don't think I found any vitamin C that acts as quickly as this. It's a combination of the glutathione and active vitamin C in here that I think really delivers those multiple different benefits in such a short space of time. I love the packaging, it just glides onto the skin and actually hydrates at the same time. It's a really wonderful vitamin C that if it wasn't for the higher price point probably would be number one in this list. If you can stretch the Allies of Skin pricing, I would definitely give this a go, especially if you're a little impatient and you want those results now. Everyone I've shared this with has been super impressed with just how quick it works."

"Don't just rely on vitamin C for your antioxidant, pair it with others because I just think this takes this serum to the next level, and combine that with all the hydration you're going to get, it's the reason why it's one of my favorites. If you're somebody that's super impatient and you want those quick wins, those instant results, that is the quickest acting vitamin C I've ever tried, bar none. I said that like a year ago in a vitamin C video I did and I stand by that to this day. You put that on the skin, use it consistently on a morning for a week and you will see that glow game come through, the radiance boost. That is the quickest acting vitamin C you will ever find."

"This is the most expensive of the options, and it does come with a hefty price point. But the reason I say that this is worth every single penny is because of the speed that this acts. The fastest vitamin C bar none. It has a beautiful formulation that actually hydrates. So if you're somebody that finds vitamin C particularly drying on the skin, this could work really well for you. And it contains glutathione alongside a high-dose vitamin C. If you want to just get your summer skin going without having to wait for results, this is it. After a couple of uses, you will definitely notice that your hyperpigmentation is breaking apart, that your glow game is returning, and your skin is more luminous than ever. It's all I can really call this, a good skin day in a bottle. If you want those results in a flash, you don't want to wait, this is where it's at and I love it. If you're somebody that's impatient and you want those results now, you will not get a faster vitamin C than this."

"This is the Allies of Skin 20% Vitamin C Brighten & Firm Serum. It isn't cheap, but it's half the price of the Skinceuticals C E Ferulic and you get more in terms of its active formulation and the results. This is the best option for people that are impatient. If you want quick wins, you want those results like that, this product is for you. It's got a high dose of that vitamin C in a stabilized form. It's also got glutathione, which is one of the best complimentary ingredients to go alongside vitamin C to boost the effect against hyperpigmentation. This will fade your dark spots within literally within ten days you'll start to see those dark spots fading, breaking apart. It's amazing. Yes, you have to pay a little bit more for it, but if you're super impatient, you want those quick wins, you want that delivery, now this is a great product and it feels beautiful. It's also got three other antioxidants alongside it that glutathione. This is a next level formulation, far better than the C E Ferulic and half the price. So if you can afford C E Ferulic, I would say opt for this instead. You'll save some coin and you'll get far better results."

"I love this product. This is their 20% vitamin C brightening and firming serum. They had a couple of tweaks to the formulation and updated it with a new title and brand new packaging. They haven't increased the price, which is wonderful. I think they've taken what was already a 10 out of 10 product and made it 11 out of 10. This contains a stabilized form of vitamin C alongside a lot of other antioxidants, which are, to my knowledge, unheard of in other brands. They've taken these really innovative antioxidants and harnessed the power of them to deliver not only protection against free radical damage, but also brightening and glow illuminating benefits. This is a real powerhouse and uses glutathione as the best friend of vitamin C to really speed up that rate of hyperpigmentation eradication. This is the fastest acting vitamin C I've ever used and proves that you don't have to go for ascorbic or [L-ascorbic] acid to get the very best benefits. They've added citrus cell extracts which take it to the next level and really harness the power of nature to deliver brightening. They've transformed the packaging which is easier to use and looks absolutely divine. This is a fantastic product that allows you to level up your vitamin C experience without all the issues that come with it."

"For people that don't mind paying a little bit more, this delivers so so much more. You've got vitamin C using alongside glutathione, other firming ingredients here. This is one of the quickest acting vitamin C's I've ever tried. So, if you're impatient, you want to get on top of your stubborn hyperpigmentation, you want to firm that skin up, and you kind of want to do it quickly, this is the product to reach for. It's not the cheapest, so it's not going to be for everyone's budget, but if you're happy to pay a little bit more to get a lot more, this is worth it every single time. I love this. It's probably one of the most, if not the most effective vitamin C's I've ever tried and definitely worthy of a place on this top 10 anti-aging serums list."

"This is the Allies of Skin 20% Vitamin C Brighten & Firm Serum. I always have said that this is the fastest acting vitamin C I have ever tried when it comes to fading hyperpigmentation, glowing up the skin and boosting firmness. This works quicker than any other and I was kind of shocked to realize it uses ethylated ascorbic acid. You can clearly see that from the ingredients. But I was already hooked by the time I realized this. And I think this proved to me at least anecdotally in terms of my own experiences that ethylated ascorbic acid actually works quicker than a lot of oxidizing pure form vitamin C's. This stays fresh for as long as you need it to and it just works like no other. A superstar that's also packed with glutathione, antioxidants, and so many pro collagen, anti-hyperpigmentation ingredients. This is a standout one for me and was the first one I want to mention today because this is the one that got me hooked on ethylated ascorbic acid. Even with the 20% off discount code, it's not going to be for everyone's budget, and I get that."

"The formulation on here is unparalleled, 10 out of 10, Holy Grail. But because of its sky-high price point, that's what brings it down just slightly in this list. I think if it was slightly cheaper it would obviously be a contender for that first spot. The reason why I say this is ultimate even in spite of that high price point is that for me it just delivered the quickest acting vitamin C I've ever used. If you want that glow up within weeks, this is the product to reach for. It's that combination of vitamin C in a sky-high percentage alongside glutathione and some other great enhancing ingredients that are going to make sure it gets into the skin, gets to where it needs to be in order to deliver those results. This is a great example of where I think formulation is key. This compared to another 20% vitamin C isn't going to give you the same results. The other ingredients are going to make sure this delivers far in excess."

"This is the Allies of Skin 20% vitamin C brightening and firming serum. I'm crowning this the fastest acting vitamin C. This works on your hyperpigmentation within about 2 weeks. That is genuinely unheard of. I don't think I found a single vitamin C out there that works as quick as this. Two weeks, your glow game will be on point. You'll definitely start to see that hyperpigmentation break apart and your skin will just be glowing so so much. The way that they formulated this alongside vitamin C, glutathione, brightening ingredients, it doesn't prickle. Because of the formulation, you get less sensitivity than you would expect from a fast acting 20% vitamin C. It hydrates you because it's got a really nice [dimethicone] base. So you put it on the skin and it kind of locks in the hydration. Great for people that find vitamin C drying on the skin. It's just an all round holy grail. So wonderful. It's shelf stable, so you don't have to worry about it oxidizing, which I love."

"This is hands down the quickest acting vitamin C I have ever used. Couple of uses, it'll get your glow game on point. After about a week, maybe 10 days, you'll start to see that hyperpigmentation break apart and fade. It is that quick. Now, it's not cheap. So if you're someone that's on a budget, use any one of the other recommendations I've made today. Be consistent and you'll see the results in the long term. But if you want those results now, you don't want to wait, this is the one for you. It's in a really nice dimethicone base, too. So it has a super long shelf life. It's not going to be one of those products that expires really quickly, which again, I appreciate. I want that if I'm spending top dollar. I want to be able to use it over a period of time. You can with this. It's beautiful. Great. I think if you've got a drier skin type, if you're somebody that finds vitamin C can be a little drying on the skin and you want something hydrating, this works because of that base and it just feels beautiful. It gives you that instant smoothness, that radiance boost. And I don't think there's another product on the market that starts to fade your hyperpigmentation after just 7 to 10 days. This is the only one I found that does it, which means even though it comes with a higher price point, it will forever, forever have my heart."

"My absolute favorite, though this definitely isn't for those that are looking for a budget conscious option, is the Allies of Skin 20% Vitamin C Brighten & Firm Serum. I just love this. It glides onto the skin, it feels beautiful, it's hydrating. It's everything I personally absolutely love. You've got a hydrated vitamin C and that glutathione in here alongside some other brightening agents, and of all the products I've ever tried, this is the quickest acting ever. Like within three applications you already see that hyperpigmentation lifting. I do know that some people say that because it has a dimethicone base that it goes on a little bit silicone, but I personally like that texture. The great thing is Allies of Skin do like a results money back guarantee thing, so if you don't like the texture you can send it back anyway, which at a high price point product I might be inclined to do. I love the texture, but I think that built-in guarantee means you can try it without necessarily panicking that you might not like the texture."

"This is the Allies of Skin 20% Vitamin C Brightening and Firming Serum. This is hands down the fastest acting vitamin C ever. Like no ifs, no buts, just works. If you're impatient, you want to fade your hyperpigmentation, boost your collagen and elastin, and just increase your radiance and luminosity, you need a high dose vitamin C works in like 2 weeks. You start using this on a morning, within 2 weeks, you'll see those benefits, that luminosity, that fading, the hyperpigmentation. It just works. Of every vitamin C I've ever tried, this is the quickest. This isn't the cheapest product, but it's an investment and I wouldn't be without it. You can use this, buy a bottle of this, use it. It'll last you about two months because you don't need a lot. Last two months and then once you've got all the benefits from this by that end of that two-month period, you will be pretty much set with your luminosity, your hyperpigmentation, it'll be so much better."

"This formulation is the quickest acting when it comes to brightening and fading hyperpigmentation. I was wowed when I used this. It does come with a higher price point, but I have got a discount code which gets 20% off which I think makes it more manageable. This is the quickest acting vitamin C you will find. It's on a par with neoethenolic ascorbic acid but with so much less sensitivity. This for me is just the perfect blend of ingredients to maximize results and minimize irritation. You've got glutathione which works perfectly alongside that vitamin C to brighten the skin and fade hyperpigmentation. You've got a plethora of different calming and soothing ingredients, and you've got three antioxidants in here to boost the protection level. That 20% I think is the sweet spot with vitamin C where you get the maximum results but the minimum risk of side effects. It's in a dimethicone base which I love because it's hydrating, it slides on the skin, it acts a bit like a primer, and it's just guaranteed a good skin day after using this. That dimethicone base reduces the risk of irritation. I absolutely love it."

"This is the Allies of Skin 20% Vitamin C Brightening and Firming Serum. Not the cheapest on the market, but this is definitely worth the splurge because it contains glutathione alongside that potent vitamin C, which is gonna double down on the hyperpigmentation fighting properties of just using vitamin C in isolation. This pairing of glutathione and vitamin C is amazing, it's really difficult to find, so this is why Allies of Skin is one of my favorites if you want to get this combo. Getting your vitamin C game on point is going to be the real secret to preventing premature aging. It's going to bring back luminosity, vibrancy, even out your skin tone."

"I love this one, this is the Allies of Skin 20% Vitamin C. This is super high strength and you might get a little bit of sensitivity, but if you've got a more resilient skin type this is going to give you ridiculously quick results when it comes to brightening the skin and boosting the levels of collagen."

"This is the Allies of Skin 20% Vitamin C Brightening and Firming Serum. There is nothing else like it on Skincare Planet Earth when it comes to speed of delivery and results. It's the quickest acting vitamin C ever. You use this for 2 weeks and you'll already see your hyperpigmentation breaking apart. You'll see your skin glowing to the gods after just a couple of uses. And it feels beautiful. It hydrates at the same time as delivering all those benefits. And it genuinely lifts and firms. There are lots of serums out there that make that claim. Very few actually deliver. And this is one of them. You've got glutathione in here which is one of the best pigment correcting ingredients alongside that vitamin C. You've got some other potent antioxidants which are really going to help supercharge your glow game. You can see this as a vitamin C. You can see it as a hyperpigmentation serum and an antioxidant serum all in one. It's a three in one and it's just so so amazing. It isn't the cheapest product out there, but I think if you're impatient like I am and you don't want to wait around, this is the one."

"This is the quickest acting vitamin C I have ever used. Starts to fade your hyperpigmentation in just 2 weeks. And I really think amongst other things, it's the glutathione in this that's really helped achieving that quick turnaround. I love this. I've got one here. I'm just about to finish one. This is an absolute go-to for me every single day. One of my favorite vitamin C serums. It's not the cheapest out there, but it's definitely the best formulated."

"This is the quickest acting vitamin C against hyperpigmentation. I started using this just to kind of kickstart that and get on top of all of that. This works so so so well."

"I love the Allies of Skin 20% Vitamin C. Not the cheapest product, but it works in super quick time. I felt it just gave me that quick hit, that instant boost to plumpness in the skin, hydration and radiance, alongside that hyperpigmentation fighting, which was something that I felt was slightly unique to this one alone. With these peptides present in this, you could overdo it and you could increase sensitivity, so I actually use this more of a treatment rather than a daily vitamin C. Twice a week I would use this, and on the other days I continue to use other vitamin C products. The brand says it's perfectly fine to use this every single day, and I know a lot of people out there do and absolutely love it, so if you just want one vitamin C and you want to really get maximum benefits from this, you could just use it every single day on a morning as part of your skincare routine. But for me, I found using it twice a week still gave me some game-changing, next-level results without increasing the risk of any side effects and sensitivity. As soon as you apply this you get that instant plumping. I used it today and I just felt like my skin was plumper to the touch. Definitely with that comes a minimizing of fine lines."

"I love the Allies of Skin one but it's close to 100 pounds."

"This is one of my favorites, the Allies of Skin 20% Vitamin C Brightening and Firming Serum. 20% vitamin C glutathione together for the very very best results. I absolutely love this. It's not the cheapest product out there but they actually have 30% off at the moment for the whole of November which is amazing, brings that price down a little. If you want to tackle your hyperpigmentation quick, there is no better product than this. It just almost eats away at the hyperpigmentation in front of your very eyes super quick. Great for a glow up, and it's that glutathione that's really doing the heavy lifting here."

"Allies of Skin Vitamin C 20% uses ethylated ascorbic acid stabilized vitamin C to maximize shelf life. I love this formula because it's one of the quickest acting you will ever find. They've recently reformulated and tweaked it to make it even better, with the new version containing additional brightening ingredients. It fades hyperpigmentation in as little as 2 weeks, proving that ethylated ascorbic acid works far better than traditional ascorbic acid because it isn't oxidized and you can enjoy the longevity of use while still delivering all that great benefit."

"I love the Allies of Skin vitamin C, which has glutathione in it. Glutathione is one of my absolute favorite hyperpigmentation ingredients."

"If you love a good vitamin C serum, something that is really brightening and one that you can be more consistent with and use with other ingredients, then you have to try this. I never have to worry about it because it never happens, and that is a lovely thing."

"This is so hydrating on the skin. It has a very nice unique texture and vitamin C, as you know, is a great ingredient to brighten the skin and also to protect your skin from pollution. It's a great antioxidant that I feel like a lot of people should incorporate. And because this uses a vitamin C derivative, it's a little bit more gentle than a pure form of vitamin C like ascorbic acid. The one great thing with derivatives is that you can pair these up with more ingredients without having to worry about conflicts. So because it has growth factors and peptides, then that serum can be used with this because this is a vitamin C derivative. And I love this. Not everybody can use vitamin C. Some people can't even use a vitamin C derivative, and these tend to be more gentle."

"This is the 20% vitamin C brighten and firm serum. This has five different antioxidants to protect the skin and one of them, glutathione, is actually designed to also fight those fine lines and wrinkles. So this is brightening the skin, this is helping the overall texture and tone of your skin. This particular one is not water-based so it comes out in quite a thicker consistency. I personally love it, my dry skin really loves it, and it kind of just sits on the skin for a minute then starts to sink in almost like an oil. It's actually beautiful. It could be considered a little heavy for those with super oily skin. But this one I've used so many bottles of it and I find it deeply hydrating for the skin and it just feels good."

"This is my vitamin C product, the 20% Vitamin C Brighten and Firm Serum. I really love this formulation and it has about a bazillion antioxidants for firming, for brightening, for protecting. I mean, you name it, it's all in here. They have two different vitamin C products and this is the only one I can get in Europe. They have a different one in America which is more like a water-based. This is not that kind of formulation, which is why I really like it. It goes on much thicker but it kind of melts into your skin almost like an oil. I think it's beautiful. It is deeply hydrating. It is fabulous. I love it."

"Right now I'm using the 20% Vitamin C which again it's thicker because it's got diamond powder but when you apply it on your skin it just melts. It helps your skin reflect light. This interesting consistency, it comes out you're like what is this goopy stuff and then you put it on your face you're like oh it's diamond powder. It's actually made with diamond powder that helps your skin light, which is again something that I want."

"I love this vitamin C and I think I've talked about it probably a hundred times on this channel. It's heavy, it's almost like a thick oil light texture. It's not for everyone but I love it and my skin loves it."