Dr Sam's Flawless Vitamin C NAD+ Serum: a Guru Score of 83%

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.

All takes Yay takes Nay takes Mixed takes Hide sponsored

✓Yay

"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."

Dr. Vanita Rattan

1.23M subs

✓Yay

"So it is expensive. The positives are it's got [tetrahexyldecyl ascorbate], [ascorbyl glucoside] and ectoin. Remember I told you about ectoin? I love it. It's brilliant if you got dry skin. And of course packaging is great. The downside is there's actually not much else in here. I would say I really like the formula. I really like the packaging, but it is expensive. If you can afford it, get it. But if you can't, we've spoken about other ones in this video that are more affordable."

Mad About Skin

731k subs

✓Yay

"So, if you're somebody that is really struggling to get on top of your hyperpigmentation game, you want something that's going to have a real punch behind it to help supercharge it, I think this is worth every single penny. [...] I would say you only need to reach for this if you have very stubborn hyperpigmentation. If you do absolutely give this a go because I think it'll work so so well for you. This is [...] amazing if fighting hyperpigmentation is your number one concern."

All 3 takes from Mad About Skin

BEST SKINCARE ROUTINE 2024 - Best Anti Aging Skincare

"The luxury you've got the Dr Sam's Flawless Vitamin C NAD+ Serum, this is the newest launch but I'm absolutely loving it."

VITAMIN C Hall Of Fame 2025 - Best & Worst Vitamin C Serums

"So, if you're somebody that is really struggling to get on top of your hyperpigmentation game, you want something that's going to have a real punch behind it to help supercharge it, I think this is worth every single penny. [...] I would say you only need to reach for this if you have very stubborn hyperpigmentation. If you do absolutely give this a go because I think it'll work so so well for you. This is [...] amazing if fighting hyperpigmentation is your number one concern."

AGE IN REVERSE - Best Anti Aging Skincare Ingredients 2024

"This is stunning because it uses my two favorite forms of vitamin C derivatives in sky high concentrations alongside some calming and soothing ingredients and that NAD which is just going to supercharge the skin. Vitamin C derivatives actually convert to pure form vitamin C in the skin so they're much more gentle, you don't get that instant hit on contact, and so they're great for people with sensitive skin."

Dr Sam Bunting

240k subs

✓Yay

"I think we've done it with Flawless Vitamin C NAD+ Serum, a one of a kind formula."

Founder's own brand

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?

Yes. All 4 gurus who reviewed it give it their stamp of approval, for a Guru Score of 83%.

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 83%. That is our read on how warmly the experts talk about it, based on the verdicts of 4 expert reviewers we have collected.