Zhenjiang Dong Yuan Biotech Co., Ltd. is devoted to the research, development and production of Bio-technology. As a specialist company of manufacturing Hyaluronic Acid, 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. Our product can be used as the raw material in fields like cosmetics, health and beauty food, pharmaceutical manufacture, etc.