Kushenol A is isolated from the root of Sophora flavescent, a non-competitive tyrosinase inhibitor with IC50 and Ki values of 1.1 μM and 0.4 μM, respectively[1].Kushenol A is a flavonoid antioxidant, has inhibitory effects on alpha-glucosidase and beta-amylase[2].Kushenol A is confirmed as potential inhibitors of enzymes targeted by cosmetics for skin whitening and aging[1].
[1]. Kim JH, et al. Kushenol A and 8-prenylkaempferol, tyrosinase inhibitors, derived from Sophora flavescens. J Enzyme Inhib Med Chem. 2018 Dec;33(1):1048-1054. [2]. Kim JH, et al. Glycosidase inhibitory flavonoids from Sophora flavescens. Biol Pharm Bull. 2006 Feb;29(2):302-5.
















