Shaanxi Yongyuan Bio-Tech Co., Ltd. headquartered in Xi'an,is an expert in the field of biochemistry, pharmacology and analysis of herbs and natural compounds. We are mainly engaged in plant extracts, natural pigment, natural sweeteners, animal extracts, fermentation of raw materials and other natural health products, our products are used in functional food, health food , drugs, cosmetics, animal feed, veterinary drugs, biological pesticides, environmental products.
Resveratrol 98%\50% 
Milk Thistle Extract Silybin 20%\40%HPLC
Tribulus Terrestris P.E. 40%\60%\90% UV
SoyBean Isoflavones 40% HPLC
Magnolol 90%\95%\98% HPLC
Piperine 95%\98% HPLC
Polydatin 98% HPLC
Astragalus P.E.50% UV
Gotu Kola Extract 80% HPLC
Gynostemma Pentaphylium P.E. 80%\98% UV
Cytisine 98% HPLC
HoneySuchle Flowers Extract Chlorogenic acid 5% HPLC
Saw Palmetto Fruit Extract Fatty Acids 25%\45% GC
Matrine98% HPLC
Biharatter Melon P.E. 10% UV
Amygdalin 98% HPLC
Latifolin Extract 20%UV
Grape seed P.E.OPC 95% UV
Dandelion root P.E.flavone 5%
Esculin 98% HPLC
Harmine 98% HPLC
Genistein98% HPLC
Osthole 70-98% HPLC
Nomame Semaherb P.E. Flavones 8% UV
HCA60% HPLC
Gymnema P.E Gymnemic acids 25% HPLC
broccoli P.E. 10:1
Cactus Extracts 20:1
Sclareolide 98% GC
Yohimbine hydrochloride 98% HPLC
Epimedium Breviconum P.E. (Icariin)10% HPLC
Ginkgo biloba P.E.24%\6% 
Naringin 98% HPLC
Bilberry P.E.( Anthocyanosides)  25% UV
Echinacea purpurea P.E. 4% UV
Citrus Aurantium...