Transform Your Skincare Routine
Introducing COSRX The 6 Peptide Skin Booster Serum—a lightweight, multitasking “booster” serum that preps and elevates your skincare game. This first-step serum pairs the hydrating benefits of an essence with skin-enhancing properties, delivering moisture, elasticity, and improved texture with each use.
Why Your Skin Will Love It
Achieve glowing, healthy skin with a formula designed to work smarter, not harder. Packed with a potent 6 peptide complex, it promotes skin firmness and supports natural repair processes. Adding to the mix, niacinamide brightens while maintaining oil balance, and hyaluronic acid teams up with glycerin to quench and plump thirsty skin.
Nourishment That Lasts
Additional powerhouse ingredients like allantoin and amino acids soothe, reinforce your skin’s barrier, and enhance resilience. Panthenol and natural moisturizing factors (NMF) lock in hydration, ensuring long-lasting moisture retention. This serum also primes the skin for better absorption of subsequent treatments, making every step of your routine more effective.





