1. Whitening: The inhibitory force to the activity of tyrosinase is stronger than that of the Arbutin,Kojic Acid, Vitamin C and Hydroquinone. It can further inhibit the activity of dopachrome2. Similar activity to SOD: It has the same dispelling force to free oxidizing radical similar to SOD(super oxide dismutase)tautomerase (TRP-2). It possesses a quick and highly effective whitening function.3. Oxygen resistance: It has an approximate resistant force to oxidation as vitamin E.