Whether to use fat or hyaluronic acid for facial filler can not be generalized, because different methods have different effects, and you can choose according to your own situation. 1. Lipo-filling: facial lipo-filling is to fill the face with autologous fat to improve facial depression and adjust facial contour. As the fat comes from oneself, lipo-filling is a transplantation of fat tissue, which can exist permanently after survival. However, it requires high professional skills of the operator, and if it is not operated properly, it can also cause bleeding, infection, embolism and other serious consequences. 2. Hyaluronic acid filling: Hyaluronic acid filling is an invasive treatment through hyaluronic acid injection, after filling the facial contour can be more clear and fuller, hyaluronic acid itself belongs to the allogeneic material, there may be allergic and rejection reaction. Hyaluronic acid itself is an allogeneic material and may cause allergic and rejection reactions. It also requires multiple fillings to maintain the effect. Whether it is autologous fat filling or hyaluronic acid filling, you should choose to do it under the guidance of a regular hospital specialist according to your own situation.