Sodium Hyaluronate, or Hyaluronic acid (HA) is one kind of polysaccharides, the key water maintaining substance, found in human skin. When HA solution is applied on the surface of skin, it can form an air permeable layer and keep the skin moist and smooth. Small molecular weight HA can penetrate into dermis layer, fully combine with water, promote skin blood microcirculation and nutrient absorption and maintain normal metabolism, and as a result it plays a role of wrinkle removing, look improving and health protecting.
