Hyaluronic acid has a powerful hydrating function, which can make the face full and light after injection, and the filling effect is immediate. Hyaluronic acid can not only fill, but also solve the problems of wrinkle removal, improving decree lines, filling acne scars and so on, making the face younger. Injection of hyaluronic acid requires a high level of skills of doctors, and it is necessary to choose a professional hospital to get more protection.