Hyaluronic Acid(HA) is a straight chain macromolecular mucopolysaccharide composed of repeat disaccharide units of glucuronic acid and N-acetylglucosamine. It widely consists in the extracellular space of human and animal tissue, vitreum, umbilical cord, skin joints synovia and cockscomb, etc.
Four types can be choosen:
1.Food grade
2.Cosmetic grade
3.Eye drop grade
4.Injection grade
