Done properly, the idea with grafting fat to the face is to restore the normal volumes that have been lost in very specific key areas of the face as a result of aging or certain disease processes. Thus, the volumes of fat that are injected are very small, relatively speaking, and the fat is injected into certain specific areas where there already are fat pads which have become smaller as aging has progressed. Tissues that lose their tone and support over time will still do so, and when that happens a lifting procedure, like a facelift or eyelid tuck is required. But, I think this will be the case regardless of whether fat was injected or not, that is, if the fat grafting was done properly. While techniques and processes for fat transfer continue to evolve and improve every year, and we know so much more about it than we did when it first started to become popular in the 1990's - which is almost 30 years ago - if you look at the majority of patients who had the procedure done back then by surgeons who really knew what they were doing and did a good, artistic job of it, I think you will find that the results are long lasting, and they have not caused any more sagging or laxity of tissues than we would have expected regardless.