Cosmetic Raw Materials Arbutin Powder 99%/Alpha Arbutin/Beta Arbutin Arbutin is commercially used as a skin-whitening agent in cosmetic industry. It works by competitive inhibition of the enzyme, tyrosinase, a key enzyme in the synthesis of melanin. Depending on the spatial structure of the glycosidic linkage between glucose and hydroquinone, arbutin forms two epimers: Alpha Arbutin and Beta arbutin. Arbutin Working …