The specification: 20%, 30%, 50%, etc.; or scale extract, for example, 10:1, 20:1; etc. 1. The test method: UV 2. The specification: 20%, 30%, 50%, etc.; or scale extract, for example, 10:1, 20:1; or according to the requirement of our clients. 3. Origin: It is derived from the root of Alkanna tinctoria Tausch by modern biotechnology. 4. The effect: Widely used in foodstuff and cosmetics as red colorant agent; As medicine material, it have better purpose to cure acute icteric hepatitis or nonicteric hepatitis, chronic hepatitis and verruca plana etc. 5. This product has been exported to EU, Japan, USA, Asia etc.. The physical level and microbiological level can meet the export standards well. Email: Sophia(@) MSN:hejing_jj(@) Skype:100002 Contact person: Sophia Mobile: 86 15377537012