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Hyaluronic Acid
Hyaluronic Acid
Hyaluronic Acid (HA) is a straight chain macromolecular muco polysaccharide composed of repeat disaccharide units of glucuronic acid and N-acetylglucosamine. It is widely consists of extra-cellular space of human and animal tissue, vitreum, umbilical cord, skin joints synovia and cockscomb, etc. The commercial HA is commonly a sodium salt, called sodium hyaluronate, habitually called hyaluronic acid. Its molecular weight is from several ten thousand to several million. It is aqueous solution has outstanding moisture keeping ability, high visco-elasticity and lubricity. It is widely used in cosmetics, pharmacy and health and beauty food.
