
COSRX The 6 Peptide Skin Booster Serum 150mL
코스알엑스 더 6 펩타이드 화잘먹 세럼 150ml 더블
₩ is the Korean store price; $ is what Olive Young Global lists. They often differ because the pack size or count sold overseas isn't the same — check the size on the listing before you buy.
Not a cart — nothing is sold here. I check it against what you already use: clashing actives, doubling up, and morning vs night.
Fit with your routine
Add a few more to your routine and we'll flag any clashing actives or good pairings with this one.
About this product
COSRX packs six different peptides — including acetyl hexapeptide-8 and copper tripeptide-1 — into this booster, each a short amino-acid chain that signals skin cells toward firmer, more resilient function, paired with niacinamide for tone and barrier support. It's designed as a first-step booster, light enough to layer and build up in several thin coats rather than one heavy application. This is a newer listing without an established review history yet, so consider the peptide science solid but the real-world results still unproven at scale.
Bottom line: a fragrance-free, multi-peptide first-essence for anyone wanting to add anti-aging support early in their routine.
After cleansing, smooth over the face as the first step of skincare, layering several thin coats for fuller effect.
What reviewers say
This peptide serum is nicely balanced for me — half the benefit is hydration, half is soothing, which makes it a good all-rounder rather than a one-trick product. It suits my combination skin well, and the fragrance-free, niacinamide-backed formula means I never worry about it stirring up trouble.
Asked which skin it worked for, 53% of reviewers picked combination (dry 36%, oily 11%).
71% called it gentle on their skin.
These add up to 100 — it's which answer people chose, not a score out of 100. It tells you who liked it, which isn't the same as what will suit you.
Ingredients
Key actives
What this product is working withDoes this fit what you already use?
Add it and I'll check it against the rest — clashing actives, doubling up, and which half of the day each one belongs in.
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