Fat injection, fat transfer, or fat grafting, are all synonymous terms used to describe a technique that involves using fat from one area of the body as a natural filler for another part of the body. Fat grafting has broad applications in cosmetic medicine. The fat is injected through specially designed needles into areas requiring volume-enhancement. It produces safe, natural and long-lasting results with the creation of a more youthful and enhanced appearance. Typical treatment areas include the cheeks, lips, upper and lower eyelids and heavy folds on the face. Larger areas can also be treated such as the hands, buttocks (Brazilian Butt Lift) and breasts. Fat grafting is a technique that is growing in popularity as it replaces volume-deficient areas with a patient’s own tissues, sparing them the risks associated with fillers derived from animal tissue.