Daily Defense Vitamin C Serum.

"The Remedy Daily Defense sold out like that. I think it actually sold out completely within 48 hours. It's been a bit of a viral hit. It's utilizing the power of that ethylated ascorbic acid to really deliver. It's going to brighten the skin, have some great antioxidant benefits, and using it as part of a comprehensive routine will also help with anti-aging in terms of collagen production. It's just a nice all-round formula. Super affordable and really lightweight. This is a water-based serum, so it's really just impossible to tell you've got it on after you've used it. Some other versions of ethylated ascorbic acid can be a little bit oily. Not this. This just disappears without a trace, sinks in, but is delivering you all that great vitamin C benefit."

"A more affordable ethylated ascorbic acid would come in the form of the Remedy Daily Defense serum. Again, ethylated ascorbic acid not quite as quick to work as the Allies of Skin one, but same ingredient."

"Day to day I use the Remedy Daily Defense Vitamin C Serum, which is one of my favorites. Vitamin C is a really great ingredient for firming and lifting the skin. You have to be consistent with it, as you should be with all of your skincare. I would expect for most people if you started this routine now, the firming and lifting results will probably come at the 3 to 6 month point. So be consistent and definitely invest for the long term. Five days a week, I use that one by Remedy."

"If you want a similar product at a much more affordable price point, you could reach for Remedy Daily Defense Vitamin C. This has a 15% dose of ethylated vitamin C, so that sweet spot between pure form and derivative form, just absolute perfection. Packed full of glutathione too, so very similar formula. I just find it takes a little bit longer to work, so it depends on your level of patience. Remedy is a great dupe. You will just have to have a tiny bit more patience."

"One of my absolute favorites is the Remedy Daily Defense Vitamin C. 15% ethylated ascorbic acid. So it's got that collagen boosting, but it's got a whole plethora of other ingredients which are beneficial for the skin. This is one of my favorites and it has a super long shelf life, so you don't have to race through it worrying about it oxidizing."

"If you're looking for an alternative, I would fully fully endorse the Remedy Daily Defense Vitamin C Serum. Great brand, wonderful owner of the brand in Dr. Sha. Absolutely wonderful brand that I've always had the best experience with. And their Daily Defense Vitamin C, honestly, I think in most cases, is better than the offerings from The Ordinary. Very easy to make a switch and I would definitely definitely recommend that."

"The ectoin is really important because one of the biggest issues and barriers people had with vitamin C was sensitivity and irritation. Well, not with this. The ectoin really takes that down. It gives it a really nice milky emulsion feel to the serum and it just delivers you that calming, soothing alongside that dose of vitamin C. I think this product is the one that's going to supercharge vitamin C this year because it's become such a viral hit and a phenomena. This is going to be a complete game changer when it comes to the vitamin C landscape. It's £26 around $30. Super inexpensive as well when you consider the formulation and you're not rushing through and wasting this. So that money you'll be able to use this right through to the very last drop without worrying about any of that wastage or oxidation."

"This is like a two in one. It just makes logical sense to get your ectoin and vitamin C in the same serum, saving two steps, combining them into one. And I would say at the moment, this is my absolute favorite vitamin C for so many reasons. Ectoin being one of them. You get fewer side effects and irritation because that ectoin offsets that. You get all that potency from the vitamin C. It's stabilized so it won't oxidize quickly and it's just doing everything we want. In fact, I loved this vitamin C so so much I featured it in a standalone video. Genuinely wonderful. And if you want to take some of the extra steps out of your routine and streamline down, this is the one that I would go for. You've got your vitamin C, you've got your ectoin, and so so much more besides."

"The Remedy Daily Defense is a great vitamin C. You can use it to sustain results at a much more affordable price point."

"I'm completely in love with their new vitamin C serum, the Remedy Daily Defense. This is the product that kind of pushed them into first place. I've gone back and forth for the past month working out which deserves the first place, and I finally decided that Remedy deserves that top spot because of this formula. Stabilized vitamin C, ectoin for barrier repair, calming and soothing, a plethora of other brightening ingredients in this and some great ingredients that are going to promote healthy aging, minimizing the appearance of fine lines and wrinkles, does everything. And the fact the vitamin C is stabilized means this isn't going to oxidize on you. You can get a good shelf life and longevity out of this, meaning you don't have to race through it. I loved it that much, I actually did a separate video. Yes, yes, yes. This vitamin C, everything, absolutely everything. This is the product that really catapulted them into first position because I think if they can do this good a job with the vitamin C serum, they are officially the best skincare brand."

"My favorite ectoin treatment actually comes with a vitamin C attached and it's the Remedy Daily Defense Vitamin C. This is your vitamin C to fight hyperpigmentation, increase glow and luminosity in the skin, but also has ectoin alongside it to minimize side effects, fight inflammation, and just bring equilibrium back to the skin. This I absolutely love, and it's a two-in-one. So if one of your skincare ethoses for 2026 is streamlining, maximum results, minimum products, this is a no-brainer because it's your vitamin C with your ectoin all in one."

"This is one of the biggest viral skincare hits of the last 12 months and I'm here for it because it is my current favorite vitamin C. It has vitamin C in a stabilized form, so it's not going to oxidize quickly. For years we've been told if it's not pure form ascorbic acid, the product's useless. That isn't the case and has never been the case. You can reach for vitamin C derivatives and in the long term they give great results. You can go for pure form ascorbic acid if that works well for you when you want it. But actually there's a sweet spot in the middle which is something called ethylated ascorbic acid. It's not really a vitamin C derivative but it's not a true pure form vitamin C either. It's a hybrid. It delivers all the great benefits of those instant results of pure form vitamin C but it's shelf stable. So it won't oxidize. It'll last you forever and you get a nice longevity of use without feeling like you have to rush through it because it's already turning bad. This I love. Remedy really have just hit the market. You've got your glutathione in here too, which is fantastic for brightening the skin. Every single box they could have ticked, they have ticked."

"15% is strong enough that you're going to see some amazing amazing results, but it's not so strong that it's going to breach some of the new regulations that are coming in in certain countries, nor is it so potent that it could impact people with sensitive skin. I think this product is the closest you're ever going to come to a universal will work for everyone vitamin C. Just using this in your skincare routine is a guaranteed quick win. It has so many other brightening ingredients alongside it. This is a really comprehensive formula and that's important because vitamin C on its own amazing, but if you combine it with other brightening actives and ingredients, you just get so so many more times the benefit than just using vitamin C. And the way that they formulated this means it doesn't trigger that sensitivity and irritation that you might expect from a similar equivalent percentage of vitamin C. It uses ingredients such as ectoin to calm, soothe, and support the barrier function of the skin, and it's really cleverly formulated. The price is amazing. I honestly when I read the ingredients profile of this when it first came out, I expected it to be like twice the price it actually is. So props to Remedy for actually keeping this super affordable and budget friendly where in truth they could honestly charge double and I would still buy it. It's that good. This uses a stabilized form of vitamin C, and this is key because not only will you get a longer shelf life. You don't need to race through this in like 2 months before it starts oxidizing. This will last you 6 months."

"This is what I mean when I say next generation formulas. Uses ethylated acid so it's super shelf stable. This isn't going to oxidize on you quickly like a lot of other pure form vitamin C's will. You get that shelf life. So you can use this in the long term and get the benefits over months rather than weeks, which I think we can all appreciate. One of the things we're all trying to do in 2026 is minimize waste. And I hate the idea of people throwing out their vitamin C's half used because they've oxidized. You won't get that with this shelf stable, which I love. You've also got plethora of other brightening ingredients in this one. So if you're using your vitamin C to increase radiance, glow, and luminosity, this is the one you want to reach for. Absolutely phenomenal. The packaging is to die for. It makes you want to reach out and grab it, and it's super inexpensive. That I think is really the key defining factor of the new generation vitamin C's. They don't need to break the bank. You can get some next level results without having to take out a new mortgage just to afford them. This is a really nice affordable option and I think this is great for people that are looking for longevity from their vitamin C and for instant glow up boost to radiance and luminosity."

"Remedy for Daily Defense has glutathione and vitamin C in stabilized form together. Glutathione is clinically proven to enhance the performance of vitamin C, particularly when it comes to fading hyperpigmentation. This is a powerhouse serum that's really inexpensive and ships well without worrying about shelf life impacted by oxidation. It travels well without risking oxidation in warmer temperatures. Glutathione alongside vitamin C is like a match made in heaven. So easy to use and so fantastically formulated."

"This is one of the newest launches into the vitamin C market and in my opinion, one of the best. It never claims to be the best at anything, saying using this will add an extra layer of antioxidant defense to your skincare routine and will increase radiance and luminosity alongside that. Realistic goals when it comes to how they pitch this product, and I think Remedy should really be applauded for that. This uses a stabilized form of vitamin C, so it has a longer shelf life. It's really easy to incorporate into your routine, you can use it alongside all your other actives without any worry. Because it's more stable than traditional ascorbic acid, you don't have to race to get through this before it oxidizes. You can keep it in the fridge and it'll last probably like six months, meaning you have ample time to get through it."

"This is the Remedy For Daily Defense vitamin C, a nice lightweight vitamin C emulsion. It's stunning, absolutely stunning. I want something lightweight on the skin for the warmer months, so I go for lighter products like emulsions over oils, and this fits. Vitamin C is fantastic for anti-aging, it fades hyperpigmentation, provides some protection against free radical damage, and brightens the skin."

"My personal favorite is this again by Remedy, and the price point is divine. This is a 15% stabilized vitamin C that also contains ferulic acid, which is going to turbocharge the results you see from that vitamin C. You've also got DNA repair enzymes, which is quite an innovative ingredient collection that's really emerging in skincare, and it contains ectoin, which is the best calming and soothing barrier supporting ingredient. This is a powerhouse and I absolutely love it. I know depending on where in the world you are will depend on how easy it is to access this, but I think it's the best if you can get your hands on it."

"This is a new launch from Remedy. Remedy came out with a new vitamin C serum that has the derivative free zeroth ascorbic acid. They gave me the lab sample and I went through it like crazy and I'm still using it and I bought another one. So, this is definitely a favorite for those of you who cannot tolerate L-ascorbic acid. This is a great choice. You know how Remedy stacks their formulas? They always have such amazing ingredients and it also has DNA repair enzymes in the form of phytoplankton which I think is so interesting. Remedy has so many stacked formulas. Like if you buy one of their skincare products, you're getting multiple amazing ingredients."

"Starting off with a vitamin C. This is the one by Remedy. Very gentle. Great for winter. It's made with 30 zero ethylated ascorbic acid. So, super gentle. It's a vitamin C derivative. Quick mist. This bomb milk. It's just kind of a milky mist. Super gentle. Again, this is a really nice, gentle winter skincare routine."

"It's a really good morning product because the antioxidants, the idea there is put them on before you're going to go out and be exposed to the environmental aggressors. It's a weighty bottle. You get a decent amount of product in this took me a while to go through and I think it's fine. I think it's fine if you're looking for an antioxidant serum."

"This does not have ascorbic acid. It does have [ferulic] acid though which on its own is a great antioxidant as well. So you get the furillic acid, you get the super oxide dismutase and you also get ectoin and you get the compounds from licorice root. You get no niacinamide in this. So those of you who are looking for an antioxidant serum without niacinamide, this would be a great option. The texture is really nice. It's a lightweight fluid, more like a very lightweight, thin almost hydrogel. You could actually use this as a facial moisturizer in the morning. Allow it to dry before putting sunscreen on and you would probably be more than set as far as your moisturizer needs for the day. It's fragrance-free."

"I did really enjoy their antioxidant serum, despite it having a lotty dotty derivative in it, as I call them."

"I liked the antioxidant one just fine. I would gladly use the antioxidant serum again."

"This formula is more of a super antioxidant formula that has vitamin C and so many other powerful ingredients into one formula so that you have your full antioxidant routine in one formula."

"This is an extremely powerful product to protect your skin, and there are also ingredients that may help repair sun damage, that are going to protect you from the environment, that are going to hydrate and protect your skin barrier, your microbiome, balance inflammation. So this is an extremely deep vitamin C product. It works really well. It smells really good. We solved basically all the issues that we wanted to solve. And it's also stable without color shift over a very extended period of time. We have on-shelf stability which very few products have for over a year now. We have accelerated stability showing three-year stability with this formula. This is a lot more than just a vitamin C serum. It really has everything that you need in a formula for healthy aging. It's complex. Our team put so much effort into this. I would say start slowly with this too, because it is quite powerful. Vitamin C does take your skin time to adjust."

"This is one of the most stacked, ethyl ascorbic, stable, gentle vitamin C plus serums you can find, for dark spots and collagen. It's one of my favorites, and at 28 dollars that's actually a really good price point to begin with."

"I have such a hard time not saying that the Remedy Vitamin C is my favorite vitamin C. It's ethyl ascorbic acid, it has stacked antioxidants that you don't find in many other places, and it has an incredible skin barrier loving supporting formulation. It's definitely my favorite. People really like it because it doesn't smell, it doesn't sting, it doesn't oxidize, it doesn't have all the negative issues a lot of people have with vitamin C. It also has DNA repair enzymes from plankton extract, which is rare to find at this price point, and that enzyme is activated by sun, which is what makes it a great AM serum."