Hyaluronic acid is a kind of substance that widely exists in the natural world. Its hydrating effect is obvious and it is the most powerful moisturizing substance found in the field, which can be said that hyaluronic acid is one of the most ideal and natural moisturizing factors. Hyaluronic acid has the ability to improve the skin's nutritional metabolism, so that the skin becomes soft and smooth. It also has the effect of removing wrinkles and increasing the elasticity of the skin, because of which it also has a good anti-aging effect, moisturizing and facilitating the absorption of other nutrients. Timerein sterile injection needle is certified as a Class Ⅲ medical device according to the requirements of the National Medical Products Administration. The injection needle is used in conjunction with the hydrafacial injection equipment primarily for the treatment of dry and dehydrated skin. Sodium hyaluronate is injected into the dermis, which allows the skin to absorb nutrients…