As a concentrated brightening serum from COSRX, The Vitamin C 23 Serum delivers a silky, fast-absorbing texture for daytime or evening use. It suits those with dull or uneven skin seeking improved radiance and tone. Fragrance-free and vitamin-focused, the formula targets antioxidant support and visible brightening while leaving minimal residue.
Ingredient Safety
No risk4
Low risk29
Moderate risk1