The commercial ha is commonly a sodium salt, called sodium hyaluronate, habitually called hyaluronic acid. Ha is a new biological at home and abroad. Its molecular weight is from several ten thousand to several million. Ití»s aqueous solution has outstanding moisture keeping ability, high viscoelasticity and lubricity. It is widely used in cosmetics, pharmacy and health and beauty food. We have hyaluronic acid food grade , coametic grade, medical grade and eyedrops grade. Aluminum foil, plastic bag, drum