Fat is obtained from a donor site, usually the tummy or outer thighs. The fat component is separated from the fluid either using a centrifuge, or by using the Lipivage^TM System that separates the fat as it is harvested. Using one or two incisions at the level of the wrist, the fat is injected over the back of the hand. A blunt cannula is used and care is taken not to puncture the veins. The fat is massaged gently by the surgeon to even it out.