Fat grafts, also known as fat injections, to the face are a great way to rejuvenate your face. As you age, your dermis thins, and your face will sag.You may lose volume in your cheeks and under your eyes. These areas appear to be hollow or not as defined as they were when you were younger. Additionally, some people have areas of their face lacking volume no matter what their age. Fat grafts will naturally fill those areas to restore your youthful appearance. Additionally, your own adipose fat contains adults stem cells. Adult stem cells have regenerative properties that can increase blood supply to your tissue and skin to make you look younger.