Kojic acid and its usesKojic acid is an organic compound with the chemical formula HOCH2C5H2O2OH. It is a derivative of 4-pyrone that occurs in nature as a chelating agent produced by various fungi, especially Aspergillus oryzae, whose common name in Japan is koji. [2][3][4] Kojic acid is a by-produ

Tyrosinase is an important catalytic enzyme in the process of melanin production. Kojic acid​ can chelate with copper ions in tyrosinase, thereby inactivating the enzyme, thereby reducing the formation of melanin. It is often used in beauty products for whitening, lightening, and removing acne marks.