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The 6 Peptide Skin Booster Serum
Serum · 150 ml · $0.13/ml
4.7· 341 reviews on Olive Young GlobalBest price right now
$19.00
$0.13 per ml
Checked today
at Koreabe
Save $2.25 vs. the priciest authentic seller.
Also available at
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Prices last checked today · across 7 retailers
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Price history
What this serum has actually cost
We check every authenticated seller daily; each point is the lowest landed price we found that day.
The current lowest authorized landed price for COSRX The 6 Peptide Skin Booster Serum is $19.00 at Koreabe — checked Aug 19, 2026. We rank by real landed cost across authenticity-checked sellers, never pay-to-rank.
Skin compatibility
Will this suit your skin?
We run the ingredient list we hold against three curated reference lists. Skin is personal — these are notes to help you decide, not rules. Pregnancy questions belong with your doctor, and if we don't have a full ingredient list we say so instead of guessing.
Transparency
What's actually in it
Key active
6-Peptide Complex
listed
firming, anti-aging, elasticity
Key active
Niacinamide
listed
brightening, barrier support
Key active
Copper Tripeptide-1
listed
repair, collagen support
Concentrations as stated by the brand — we never estimate them from the INCI order.
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Answers