COSRX Vitamin C Serum: a Guru Score of 74% from 3 experts

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

"If you're looking for just a straight ascorbic acid based vitamin C serum, the one from COSRX is pretty good. It's 23% that's going to be marked down."

CYoung

93k subs

~Approved

"I love love this one, if you're over 25 years old I definitely recommend it. Vitamin C clears your complexion and is the best anti-aging ingredient for fading acne scars and hyperpigmentation, but it's expensive, dermatologist brands cost about 200 a bottle, too expensive to apply consistently. This one is cheaper since it was developed jointly with Amorepacific, there's a 13% and 23% version, if your skin is sensitive it's not that different so you can start with the 13%. What I don't like about vitamin C in general is that some products are so yellow you look like SpongeBob, and it has a smell that's not easy to apply. This one has a bit of an oil layer so you have to mix it before applying, it does have a scent but I think it's bearable. Overall I love it so much and I think it's worth the hype."

AliceintheRabbitHole

59k subs

~Skip

"I didn't love the vitamin C though."

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.

Is COSRX Vitamin C Serum worth it?

The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 74%.

What is COSRX Vitamin C Serum's Guru Score?

COSRX Vitamin C Serum holds a Guru Score of 74%. That is our read on how warmly the experts talk about it, based on the verdicts of 3 expert reviewers we have collected.