The maintenance time of autologous fat facial filling varies from person to person, generally 3-5 years. If it is facial fat filling, it is actually a part of autologous fat filling. After the facial fat is filled, some of the injected fat will survive and some will be absorbed slowly. However, the surviving fat is a part of our own tissues, and it can survive for a long time, which means that its function is still relatively long, usually 3-5 years.