The fat is harvested via liposuction from an unwanted area. The fat is then processed and injected into another area. The face is a common area for fat transfer as the changes of aging often leads to wrinkles and hollows which can be improved by filling the areas with fat or other fillers.
Not all of the fat that is transferred survives and it may be necessary to perform the procedure more than once to obtain the optimal results.
The fat that does survive should be long lasting. It can take up to six months to see the final result of the procedure.