... 4/kg.Usage: When using powdery pigments, get a little water, put the exact amount of pigment ... ,just as β- carotene, belonging to carotenoid, contains rich vitamin A. Production, chroma, function, state:Uses: Used in all ... .Usage: When using pigments of powder, get a little water, put the exact amount of pigment ... .Usage: When using pigments of powder, get a little water, put the exact amount of pigment ...