Detailed answer

Serums contain active ingredients like vitamin C, niacinamide, and alpha hydroxy acids (AHAs) that can help brighten the skin. These ingredients work by reducing the production of melanin, the pigment that gives skin its color, and by exfoliating dead skin cells to reveal a brighter complexion. Serums are lightweight and easily absorbed by the skin, allowing the active ingredients to penetrate deeply and target specific skin concerns. Regular use of a brightening serum can gradually improve the overall brightness and radiance of the skin.