As a high effective stable whitening agent,widely used in various cosmetic.Effectively bottling up the acitivity of tyrosinase and obstructing pigment forming. Security:Innocuity,no stimulation and no side-effect. Application Adating for sundry advanced cosmetic for skin-care, skin-whitening,speckle-dispelling .Dissolved in lipid such as ethanol,liquid paraffin.Stabilizing in PH 5 to 8.