... all kinds of skin-care products, topical ointment.Sodium Hyaluronate for its forms, namely sodium hyaluronate (SH) referred to. It is white fibrous ... , In iron, copper and other metal ions and ascorbic acid homocystein, etc, the coexistence of reducing oxygen free radicals, ... sulfate enzyme decomposition. High molecular weight HA in enzyme, acid, heating conditions, low molecular, also is a kind of ...