hangzhou greensky biological tech.co.,ltd, a leading manufacturer and supplier of herb active ingredients in china, supply high-quality subjected products with very competitive price and good service. now we are supplying: gotu kola extract general:gotu kola has been used as a medicinal herb for thousands of years in india, china and indonesia. its ability to heal wounds, improve mental clarity, and treat skin conditions such as leprosy and psoriasis were important reasons for its extensive use in these countries. it has also been called one of the "miracle elixirs of life" because legend has it that an ancient chinese herbalist lived for more than 200 years as a result of using the herb. characteristics: light yellow powder. specification:asiaticosides:≥10% or ≥40%; functions:1,wound healing and skin lesions; 2,venous insufficiency and varicose veins; 3,high blood pressure; 4,scleroderma; 5,insomnia