With a large product line, Xi"an TonKing Biotech Co., Ltd. is able to meet customer needs while carrying a full line of herbal extracts, specialty chemicals and Chinese herb slice according to GMP. Xi"an TonKing is very proud of its leading expertise and capacity in the research, development and manufacturing of top quality botanical extracts from a wide range of raw herb materials. Our liquid and powdered botanical extracts are widely used with confidence and satisfaction by pharmaceutical, cosmetic, food and beverage industries around the world. With over 500 products to choose from, make Xi"an TonKing Biotech Co., your first choice.