We have own factory in Asia. The key product of dong yuan biotech Co., ltd. Is hyaluronic acid (ha / sodium hyaluronate) . The company is capable of carrying out large-scale production of ha with various molecular weights, apart from that; it can also produce ha with specific molecular weight and purity the quality of which is completely in accordance with iso9001 and FDA standard. It can be used as the raw material in fields like cosmetics, health and beauty food products, pharmaceutical manufacture, etc. the products have spread over all the country and exported to southeast Asia, America and Europe.