Hyaluronic acid, which originally exists in the dermal tissue of human skin in the form of colloid, is responsible for storing water, increasing skin volume and making skin look full, plump and elastic. Hyaluronic acid stock solution is a kind of hyaluronic acid, its main function is to absorb water and moisturize, but with the growth of age, hyaluronic acid in the skin is also decreasing. Applying this stock solution can help the skin to enhance elasticity, maintain moisture and restore youth. Huaxuan business provides ~ ~ ~