Supplying HA of 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 ... weakened and the akin looksdry and rough .One of the main causes of skin senility ... , look improving and health protecting. Topical grade HA can be used in many kinds of ...