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