After lipofilling, once the fat cells survive, they can be maintained permanently, but the exact survival varies from person to person. Lipofilling is an autologous fat transfer, where fat from other areas is transplanted into the desired area, and usually only 30%-70% of the fat survives in a single injection. Although successful lipofilling can be maintained permanently, fat cells, as part of the body’s cells, can gradually age and die as age changes and time passes. Due to different ages and conditions of patients, the maintenance time after fat filler varies. For example, in the face, the forehead, temples and cheeks can usually be maintained for 8-10 years after the fat filler becomes viable, while the tear trough, marionette lines and interbrow lines have a relatively short maintenance time of about 5 years. In addition, after fat filling, attention should be paid to a reasonable diet and the transplanted area should avoid strenuous activities to avoid affecting the survival of the transplanted fat.