Name: Hyaluronic acidCAS No.: 9004-61-9Molecular formular: (C14H21NO11)nContent: 99%Source: FermentedGrade: Cosmetic grade, food grade, eye-drop grade, injection grade. Ph:5.5~7.5Appearance: white powderDescription: Hyaluronic acid(HA) is a straight chain macromolecular mucopolysaccharide composed of repeat disaccharide units of glucuronic acid and N-acetylglucosamin. It widely consists in the extracellular 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. HA is a new biological at home and abroad. Its molecular weight is from several ten thousand to several million. Its aqueous solution has outstanding moisture keeping ability, high viscoelasticity and lubricity. It is widely used in cosmetics, pharmacy and health and beauty food.

Shelf Life: 24 months at normal temperature, drying and sealed conditions.

Note: This product intends to absorb moisture. Therefore it shouldn't be exposed under moisture conditions for long time. It should be used out once one bottle or bag is unsealed. If there is some remainder in it, please tighten the film and seal the bottle or bag for against moisture.