Kojic acid is an organic compound with colorless prismatic crystals. Used as antioxidant and anti-radiation agent. Kojic acid can strongly inhibit the formation of skin melanin, is safe and non-toxic, and will not produce sequelae of leukoplakia, so Kojic acid has been formulated into lotions, facial masks, lotions, and skin creams to effectively treat freckles, age spots and pigments. High-end whitening cosmetics for calmness and acne.