Autologous fat injection Von risorius is to extract part of the fat from the place where there is more fat accumulation, such as the abdomen or the inner thigh, and then separate the extracted fat with a centrifuge to extract high-activity pure fat particles, and then inject them into risorius. By filling, the face becomes round and soft, and it will become young and rich. The injection point of the needle can be selected in a hidden place. After injection, there will be slight swelling in the local area. After sufficient injection, the transplanted fat cells will not be absorbed and live forever.