There are many methods to fill facial depression, including artificial cartilage implantation, autologous fat injection, hyaluronic acid injection, etc. Among them, hyaluronic acid injection is the most popular because it is the safest, simplest, most convenient and has no side effects. Hyaluronic acid filling method is mainly aimed at facial depression caused by insufficient facial fat. Hyaluronic acid filling facial depression can be effective on the spot. Hyaluronic acid filling cheeks has no recovery period, and it does not affect daily work and life after injection. The filling effect is natural, and it is softer and more realistic than ordinary prosthesis. Hyaluronic acid filling has all the advantages mentioned above, because hyaluronic acid comes from biological tissues and human skin tissues will not be rejected, which is very safe and has no side effects. Hyaluronic acid filling facial depression is comfortable and painless, which is easy for customers to accept, just like an injection. When you "should be clear now!" When your face is sunken, you should know what to do!