COSRX The 6 Peptide Skin Booster Serum harnesses six peptide complexes to strengthen and revitalize your skin barrier. This lightweight serum penetrates deeply to enhance skin elasticity and firmness while promoting a smoother, more refined complexion. Ideal for all skin types, it works synergistically with your existing routine to deliver visible results. The generous 150ml bottle ensures long-lasting efficacy, making it a cornerstone treatment for those seeking professional-grade peptide benefits at home.