Hyaluronic Acid gel is a natural and transparent polysaccharide. It has only been used for moisturizing function. It has been included in the ranks of rhytidectomy. It can enrich the skin and achieve the effect of removing wrinkles and modifying the face. Hyaluronic Acid gel originally exists in the dermal tissue of human skin in colloidal form, which is responsible for storing moisture and increasing skin volume.