COSRX - The Vitamin C 13 Serum (20ml)

The COSRX The Vitamin C 13 Serum is a gentle, water‑based daily Vitamin C treatment designed to brighten, hydrate, and refine the skin without irritation. Formulated with 13% pure Vitamin C, this lightweight serum absorbs quickly with a refreshing, non‑sticky finish, making it ideal for everyday use—even for sensitive skin. Its stabilized formula helps fade blemishes, dark spots, freckles, and uneven tone while delivering visible radiance and firmness.

Clinically proven results show an instant hydration boost of +113.7% after one use, along with improvements in surface pigmentation (-16.07%), subsurface pigmentation (-12.22%), redness (-31.92%), and dullness (+3.94%). After one week, pores appear visibly refined with reductions in pore volume (-38.15%), pore area (-36.05%), pore count (-28.45%), and pore depth (-13.01%). Early‑aging concerns also improve, including wrinkles (-10.64%), external elasticity (+19.64%), and internal elasticity (+14.07%), with antioxidant protection lasting up to 120 hours.

To enhance performance, the serum combines Vitamin C with Super Vitamin E (Tocotrienol), Tocopherol, Glutathione, Niacinamide, and Adenosine for antioxidant synergy, firmness, and brightening. Panthenol, Hyaluronic Acid, and Allantoin provide soothing hydration for a comfortable daily experience.

Perfect for targeting hyperpigmentation, dullness, and early aging, the COSRX Vitamin C 13 Serum delivers clearer, brighter, smoother skin with consistent use.

Active Ingredients : Ascorbic acid (vitamin C), Butylene Glycol, Panthenol, Caffeine, Sodium Hyaluronate, Allantoin, Squalane, Tocopherol (Vitamin E), Palm Kernel Oil, Arginine, Niacinamide og Licorice Root Extract

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