We are Herb Extract Group Co. Ltd, which is one of the leading manufacturers and exporters of botanical, herbal and plant extracts in China. We have always manufacture the herbal extarcts, such as: Resveratrol 50% 98% , Bilberry extract (Anthocyanidins UV 25% ) , Ginkgo Biloba P. E, Shikimic Acid 98% , Cantharidin 98% , Diosgenine 98% , Kaempferol 50% 98% , Sodium Aescinate 98% , Levodopa 99% , Genistein 98% , Ursolic acid 25% 50% 90% 98% , Luteolin 90% , Paeoniflorin 98% and Tetrahydropalmatine 99% ! If you have interest of items mentioned above. Kindly let us know by return mail.