The Vitamin C 13 Serum

COSRX The Vitamin C 13 Serum is a gentle yet powerful brightening serum infused with 13% pure vitamin C (ascorbic acid) to even out skin tone, fade hyperpigmentation, and improve overall radiance. Suitable for daily use and ideal for those new to vitamin C, this serum also contains hyaluronic acid and allantoin to soothe and hydrate, while niacinamide works alongside vitamin C to boost glow and refine texture.