1.Indigo naturalis,indigo dye 2.Indigo 2%, 3%,4%, indirubin 0.3%, 0.5%,0.8%; 3.natural blue colorants; 4.to treat Psoriasis Model ... therioma, chronic myelocytic leukemia and pancreatic cancer;5. natural blue colorantApplicationPharmaceuticals, cosmetics, dye industiresRecommend Dosage-StoragePlease keep it away from direct light ...