Unhappy with facial fat graft results: is there anything I can do to disturb the process of revascularization?

Hello! Fat grafting final results do vary in the literature as you've said. I tell my patients 3-6 months for full "take" in a majority of cases. The fat lasts on average 5-10 years depending on the quality and location. To remove fat, you can consider microliposuction. I would advise against anything aggressive as it may cause damage to your skin or overall health. RF treatments can potentially help to tone the skin. Also, depending on location, FaceTite may work. Hope this helps you!