What is Remedy Daily Defense Vitamin C Serum?

A water-based vitamin C serum from Remedy that pairs a vitamin C derivative with antioxidants and skin-supporting ingredients, designed for daily use.

Is Remedy Daily Defense Vitamin C Serum worth it?

Yes. All 8 gurus who reviewed it give it their stamp of approval, for a Guru Score of 92%.

What is Remedy Daily Defense Vitamin C Serum's Guru Score?

Remedy Daily Defense Vitamin C Serum holds a Guru Score of 92%. That is our read on how warmly the experts talk about it, based on the verdicts of 8 expert reviewers we have collected. It is also Guru Certified, our mark for products that hold broad approval across many expert reviewers.

Remedy Daily Defense Vitamin C Serum: a Guru Score of 92%

What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

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Beyond50Skin

32k subs

✓Yay

"If you're looking for a vitamin C serum and you have kind of some sensitivity to L-ascorbic acid, this is a great alternative."

Top Pick: vitamin c serum for ascorbic acid intolerance

All 3 takes from Beyond50Skin

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"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."

Real Life Skincare: Messy Morning, Takeout Night & a Relaxing PM Glow Routine

"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."

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"If you're looking for a vitamin C serum and you have kind of some sensitivity to L-ascorbic acid, this is a great alternative."

AliceintheRabbitHole

59k subs

✓Yay

"This has to be one of the most requested product reviews I get here on the channel. I like it a lot, it's a really nice kind of more moisturizing feeling vitamin C derivative serum that includes a lot of other nifty ingredients. I love that you can go to the Reme website and look at all of the ingredients and see the published literature listed for each one. Such a good formula, there are plenty of brands that would charge a lot more for that exact product."

Mad About Skin

731k subs

✓Yay

"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."

Top Pick: vitamin c serum

All 18 takes from Mad About Skin

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"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."

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"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."

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"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."

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"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."

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"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."

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"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."

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"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."

The Truth About Ectoin - THE ORDINARY RICE LIPIDS + ECTOIN Exposed

"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."

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

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"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."

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"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."

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"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."

Vitamin C Has Changed Forever - OFFICIAL VITAMIN C HALL OF FAME 2026

"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."

Top 10 VITAMIN C SERUMS 2026 - It's Over For Ascorbic Acid

"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."

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"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."

VITAMIN C SERUM BACKLASH - What's Really Going On

"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."

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"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."

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No BS Beauty

89k subs

✓Yay

"They call it the bright vitamin C brightening complex. [...] They gave a moisturizer in this. [...] This one is thick, too. And it feels nice. It's winter. It was like -25 out. The more moisturizer the better right now. This moisturizer has no scent. Feels pretty nice."

The Budget Dermatologist

724k subs

✓Yay

"So I just love that texture so much. [...] It's $28. That's an incredible price for a vitamin C serum that is more in line with the price that you will find on L-ascorbic acid types of vitamin C serums. [...] I love that this is equally competitively priced with those for $28. [...] Both of these vitamin C serums get a thumbs up from me in terms of formulation and feel on the skin such that they are not irritating and they don't sting."

Dr. Aleksandra Brown

151k subs

✓Yay

"You may want to consider looking at Remedy Daily Defense if every classic L-ascorbic acid serum burns your face. It has 15% vitamin C complex based on 3-O-ethyl ascorbic acid, a vitamin C derivative, plus ferulic acid, [...] several other antioxidants, squalane, panthenol, hyaluronic acid, ectoine, centella, and bifida ferment lysate. It's fragrance-free and tested on sensitive skin, so I think of it as more of an antioxidant plus barrier support serum."