The COSRX The Vitamin C 23 Serum is a high-potency, hypoallergenic formula featuring a powerful 23% concentration of pure Vitamin C (Ascorbic Acid), the most active form for visible results. This advanced antioxidant booster is clinically proven to target key signs of early aging, including the appearance of fine lines and wrinkles, while improving skin elasticity and firmness. The synergistic blend of Super Vitamin E (Tocotrienol) and Hyaluronic Acid maximizes photoprotection and hydration, effectively fading dark spots and hyperpigmentation for a highly radiant, refined, and youthful complexion.