The 6 Peptide Skin Booster Serum
SUMMARY OF REVIEWS
COSRX The 6 Peptide Skin Booster Serum is a clear, watery texture that professional makeup artist Lisa Eldridge describes as "like a very very very thin serum essency water" and finds hydrating enough to use before cream or SPF. Board-certified dermatologist Dr. Sarah Sheu notes it contains copper tripeptide 1 and is clear. HotandFlashy calls it a decent beginner-friendly peptide product that's easy to work into a routine.
FULL REVIEWS
POSITIVE
- “I really personally love this because of the texture of it”10:47–10:56
- “It is like a very very very thin serum essency water that just feels so hydrating on your skin”10:52–10:59
- “For me if I use this before I use a cream or before I use my SPF then I feel like it's almost enough for me”11:08–11:12
- “I really like this just more for the hydrating effects”11:46–11:50
- Source: Korean skincare viral products deep dive - May 14, 2026
- “The last peptide serum is from COSRX. It's their six peptide booster”13:52–13:58
- “It's easy to work into your skincare routine if you just want to try peptides for the first time. See what you think of them”14:08–14:14
- “This is, I think, a decent product to go with”14:14–14:19
- Source: Budget friendly anti-aging skincare that actually works - Jun 12, 2026
- “The six peptide booster is the COSRX product that I really like a lot”8:34–8:42
- Source: Amazon Big Spring Sale Top Picks - Mar 27, 2026
- “The COSRX 6 peptide booster serum, which also has copper tripeptide 1 on the ingredients list, is clear, too”3:48–4:00
- Source: Dermatologist Compares Dollar Tree vs High-End Skincare - Jan 24, 2026
MIXED / NEGATIVE
No negative reviews yet — creators have only had good things to say.
WHAT CREATORS SAY
- Consensus
- 4.2 / 5 from 3 creator reviewsGrailPeople ratings based on creator reviews.
Product details
Details
- Type
- serum
- Finish
- —
- Shade
- —
- Key ingredients
- 6 multi-peptides, Hyaluronic Acid, N-Acetylglucosamine, Allantoin, Niacinamide, Acetyl Hexapeptide-8, Copper Tripeptide-1, sh-Polypeptide-121, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Oligopeptide-68
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