... Food grade,Cosmetics grade and Injection grade, with its molecular weight from 200,000 to 2,800,000.. Sodium hyaluronate, or Hyaluronic acid ... (HA) is one kind ofpolysaccharides composed of repeat disaccharide units of N-acetylglucosamineand glucuronic acid Commercial HA ... wrinkleremoving, look improving and health protecting. Topical grade HA can be used in many kinds of cosmetics ...