How Long Does Fat Grafting Last? Many people say fat grafting on the upper eyelid only last for 2-3 years .

The fat that is placed does have variable reasorption. In my experience, the fat that is present after 6 months should be permanent but will continue to behave like the fat that is naturally in your face. As such, even this grafted fat will atrophy over the years much like natural facial fat. Even so, your face should always look younger after have fat transfer compared with if you didn't have it done.

For fat grafting to truly represent 'grafting', the grafted tissue must gain a blood supply in its new location which provides a source of oxygen and nutrients and allows the tissue to persist indefinitely. If the grafted fat does not acquire a blood supply in the first few weeks after surgery, the body will gradually break it down and dissolve it, and no long-term benefit will be achieved in terms of soft tissue augmentation. Successful fat grafting surgery therefore requires a great deal of focus and attention to detail, to ensure that the fat which is harvested is viable tissue (i.e. not damaged by the harvesting process), and that the fat is delivered in such a way that the potential for ingrowth of blood vessels is maximal. If this process of blood vessel ingrowth (neovascularization) does not occur, then the injected tissue cannot truly be considered a 'graft' and is instead just another 'soft tissue filler' of limited duration.