... health food, skin care, medical fields. Hyaluronic acid (HA) is a straight chain macromolecular mucopolysaccharide composed Of repeat ... , skin joints synovia and cockscomb, etc.The commercial HA is commonly a sodium salt, called sodium hyaluronate, ... in cosmetics, pharmacy and health and beauty food. HA cosmetic gradeOral(food)gradeMedical gradeLow molecular weight Descriptionwhite powderwhite ...