As a competitive tyrosinase inhibitor, deoxyarbutin can regulate the production of melanin, overcome hyperpigmentation, lighten skin dark spots, and has a rapid and long-lasting skin whitening effect. The inhibitory effect of deoxyarbutin on tyrosinase is significantly better than that of other whitening active agents, and a small amount of use can show a whitening and brightening effect. Deoxyarbutin also has a strong antioxidant effect.