sodium hyaluronate for skin,Sodium hyaluronate is a component of the skin and some tissues of the body. It has many functions. For the skin, it is the best natural moisturizing ingredient, which can keep the moisture in the tissue cells. This retention will not be lost due to the amount of surrounding water, so it is a very good moisturizer, and many beauty products now contain sodium hyaluronate ingredients, such as topical or subcutaneous injection, which is very good Moisturizer, can also be used for filling. For example, local filling, but the sodium hyaluronate injected into the skin from the outside, because there is a metabolic process, usually about half a year, the metabolism and decomposition are gone, and repeated injection treatment is required.