
COSRX
A hydrating peptide serum featuring 6 types of peptides including Acetyl Hexapeptide-8 and Copper Tripeptide-1 to improve skin elasticity and reduce fine lines. Contains niacinamide and hyaluronic acid for brightening and moisture retention.
Solvent and humectant for ingredient delivery
Humectant that attracts and retains moisture
Humectant and antimicrobial preservative booster
Humectant and preservative booster. Common in K-beauty as a multifunctional alternative to traditional preservatives.
+ 15 more ingredients
Editorial baseline from K-beauty clinical research and community consensus. Real subscriber reports layer on as the community grows.
The key active ingredients in The 6 Peptide Skin Booster Serum Double Pack by COSRX include Glycerin (Humectant that attracts and retains moisture), Niacinamide (Vitamin B3) (brightening, pore-minimizing, barrier-support), Acetyl Hexapeptide-8 (Anti-wrinkle peptide that reduces expression lines), Copper Peptide (Anti-aging peptide that promotes collagen synthesis), sh-Polypeptide-121 (Synthetic peptide for skin repair and rejuvenation). Drawing on K-beauty research and community consensus, key ingredients show 82% effectiveness for acne in oily skin types. Seoul Sister tracks ingredient effectiveness across 5,900+ K-beauty products to provide data-backed recommendations.
The 6 Peptide Skin Booster Serum Double Pack is a Korean serum by COSRX. Sensitive skin compatibility depends on individual triggers and allergies. Seoul Sister's AI advisor Yuri analyzes all 20 ingredients against your specific skin type, concerns, and known allergens to provide a personalized compatibility score. Common irritant ingredients like fragrance, alcohol denat, and essential oils are flagged automatically.
For oily skin, the key factors in evaluating The 6 Peptide Skin Booster Serum Double Pack are comedogenic ingredient ratings, oil content, and finish type. This serum contains 13 active ingredients. Seoul Sister's database cross-references each ingredient's comedogenic rating (0-5 scale) against your skin type to identify potential pore-clogging risks. Subscribe for a personalized oily skin compatibility analysis.
The 6 Peptide Skin Booster Serum Double Pack by COSRX starts from $50.00 USD for 150ml+150ml. Seoul Sister tracks pricing at Olive Young, with price drop alerts for Pro members. Seoul Sister does not sell products — we compare retailer pricing so you can buy from the source.
The 6 Peptide Skin Booster Serum Double Pack by COSRX is tracked at Olive Young. Prices start from $50.00 USD. Seoul Sister verifies retailer authenticity and tracks counterfeit indicators to help you buy genuine Korean skincare products. We are an advice platform and never sell products ourselves.
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