Thank you for your question. This is a very important question to ask any surgeon who performs this procedure routinely. If fat is transferred anywhere in the body including the face, breasts, buttocks, arms and calves or any other area for that matter it will respond to weight gain and weight loss. This must be taken into consideration during your initial consult with a board-certified plastic surgeon. There are many options available. You can save some areas of fat to be harvested at a later date and re-graft the buttock region. Alternatively, you can undergo FDA approved procedures on the face which will refine facial contour including laser facelift and neck lift . This is called #Precision TX . #Kybella is a natural deoxycholate injection which is FDA approved for the submental region to treat the double chin deformity. there are many other options available and I wanted to mention two of the cutting-edge technologies which are available and we routinely perform them. I hope this information is helpful. Best of luck in your endeavors!