Dr Sam's Flawless Vitamin C NAD+ Serum: a Guru Score of 77%

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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✓Approved

"This serum uses two vitamin C forms, tetrahexyldecyl ascorbate and ascorbyl glucoside, which is a really smart combination. THDA is oil soluble so it penetrates the skin membrane more efficiently, and ascorbyl glucoside is a stable derivative that converts to active vitamin C once absorbed. The supporting cast is excellent, with ferulic acid to stabilize and amplify, ectoin for barrier protection, vitamin E, and sunflower shoot extract positioned as an NAD+ booster. The NAD+ claim is ahead of the science though, the research on topical NAD+ penetration is limited. That said, two stable, well-chosen vitamin C forms, ferulic acid, ectoin, no fragrance, this is well-formulated. This is worth it if you can access it, especially if you live in the UK."

No BS Beauty

89k subs

✓Approved

"This one is worth checking out there's also some great Asic acid prod products but this one combines some nice brightening ingredients in it which makes it worth checking out and again no fragrance"

All 4 takes from No BS Beauty

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"I picked up the brightly serum and I really enjoyed it"

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"It's a little bit pricey but it's really nice product it's really good for brightening your skin up"

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"This one is worth checking out there's also some great Asic acid prod products but this one combines some nice brightening ingredients in it which makes it worth checking out and again no fragrance"

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"And then uh the Sams Dr Sam's Flawless brightly serum this one also contains azleic acid it's the second ingredient and that also contains some other brightening ingredients"

Nadine Baggott

164k subs

✓Approved

"I also really like Dr Sam's brightly which has the azulaic acid and niacinamide as well and it just goes on really nice"

Doctor Anne

55k subs

✓Skip

"A nice serum, but which I did not like that much"

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Dr Sam Bunting

240k subs

✓Approved

"I think we've done it with Flawless Vitamin C NAD+ Serum, a one of a kind formula. We could supplement internal antioxidants with topical vitamin C, E and ferulic acid, we could help support healthy barrier function and defend against blue light and pollution with 2% ectoin, and vitally we could replenish and restore those vital NAD+ levels with a novel ingredient called sunflower shoot extract, which boosts NPPT levels that decline as we get older, giving a boost in NAD+ and ATP so enzymes fire more effectively for youthful cellular behavior. We've combined it with 15% vitamin C complex and 2% ectoin to tackle that external issue driving oxidative stress, but I think it has a truly powerful effect against the big three: UV rays, blue light and pollution. And the end result is healthy, vibrant skin that radiates with so much health other people can't help but notice."

Founder's own brand

All 2 takes from Dr Sam Bunting

Vitamin C & NAD+ | The Anti-Aging Breakthrough | Dr Sam Bunting

"I think we've done it with Flawless Vitamin C NAD+ Serum, a one of a kind formula. We could supplement internal antioxidants with topical vitamin C, E and ferulic acid, we could help support healthy barrier function and defend against blue light and pollution with 2% ectoin, and vitally we could replenish and restore those vital NAD+ levels with a novel ingredient called sunflower shoot extract, which boosts NPPT levels that decline as we get older, giving a boost in NAD+ and ATP so enzymes fire more effectively for youthful cellular behavior. We've combined it with 15% vitamin C complex and 2% ectoin to tackle that external issue driving oxidative stress, but I think it has a truly powerful effect against the big three: UV rays, blue light and pollution. And the end result is healthy, vibrant skin that radiates with so much health other people can't help but notice."

Meet our NEW Flawless Transformation Kit | Dr Sam Bunting

"Brightly is the AM step, dosed evenly all over for brightening and radiance, but not used on the eye area since the acid doesn't belong there. It's great for redness, great for closed comedones and blemishes, great for texture, and great for almost everyone."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Frequently asked.

What is Dr Sam's Flawless Vitamin C NAD+ Serum?

A vitamin C serum combining dual vitamin C derivatives, ferulic acid, ectoin and sunflower shoot extract, formulated to brighten skin, support barrier function and boost NAD+ levels.

Is Dr Sam's Flawless Vitamin C NAD+ Serum worth it?

Mostly yes. 4 of the 5 gurus who reviewed it give it their stamp of approval, for a Guru Score of 77%.

What is Dr Sam's Flawless Vitamin C NAD+ Serum's Guru Score?

Dr Sam's Flawless Vitamin C NAD+ Serum holds a Guru Score of 77%. That is our read on how warmly the experts talk about it, based on the verdicts of 5 expert reviewers we have collected.