Facial fat transfer, a way to restore volume, remove wrinkles, and more, relies on healthy fat cells. Liposuction leaves the plastic surgeon with a mixture of healthy, injured, and dead fat cells. Before the injection process, plastic surgeons must filter the suctioned fat to find the healthiest cells and remove the others. Your transferred cells must be able to survive in the tissues of your face, and the best way for this to happen is for them to be healthy.
Typically, following facial fat transfer, the majority of your transferred fat cells will successfully connect with the blood supply and then thrive. Some will die and then get harmlessly absorbed into your system.