... in skin, joints, synovial fluid, umbilical cord, aqueous and eye vitreous in distribution. Molecular weight is 500,000 ~ 730000 Dalton ... high visco-elastic and profile, the auxiliary agents for eye surgery, solution into the eyes behind before some depth, ... for fourth-generation bionic cosmetics additives.Widely used in cosmetics, dry eye syndrome.Cosmetics, all kinds of skin-care products, topical ...