COSRX The 6 Peptide Skin Booster Serum

Launched in October 2023, COSRX The 6 Peptide Skin Booster Serum brings clinical-grade anti-aging peptide science to a mass-market price point. At $25 for 150ml, it offers an approximately six-month supply at the typical daily usage rate, making it a standout value proposition in the K-beauty peptide serum category. The formula was developed with six functionally distinct peptides, each addressing a separate visible sign of aging through a different biological pathway. SH-Polypeptide-121 stimulates collagen synthesis for plumped, volumized skin. Copper Tripeptide-1 improves skin texture and healing speed. Dipeptide Diaminobutyroyl Benzylamide Diacetate targets enlarged pores and excess sebum. Oligopeptide-68 inhibits melanin synthesis for a brightening effect alongside niacinamide. Palmitoyl Tripeptide-8 reduces inflammation-related sensitivity. Acetyl Hexapeptide-8 smooths expression lines by targeting facial muscle micro-contractions. Hyaluronic acid and N-Acetylglucosamine form a hydration base that keeps the formula comfortable through the day without heaviness. The 6 Peptide Skin Booster Serum is COSRX's most comprehensive single-formula anti-aging serum to date, combining mechanisms that would typically require three to four separate serum layers. The water-thin texture absorbs without grease or residue. iHerb users rate it 4.7 out of 5 from over 2,500 reviews, with testers reporting visible softening of fine lines and improvement in pore appearance within one month of daily use.