Kojic Acid, CAS No. :501-30-4, 99%, Function: Inhibits the formation of melanin pigment. Prevents the tyrosinase activity by synthesizing with copper ion in the cells. The safe skin lightening and brightening ingredient. Please see MSDS of kojic acid. The good skin whitening agent which is very popular in Asian countries for skin de-pigmentation. Application: Easily dissolve in water and alcohols. Used in skin care, sun care, skin whitening/lightening, treatment for pigmentary disorders such as age spots etc. Package: Packing in carton, inner sealed with 1kg*20 aluminium foil bag. Packing in paper drum, inner sealed with 1kg*20 aluminium foil bag or 20kg plastic bag.