In my late 20s I noticed that the muscles were very noticeable under my eyes which made me look older. (The appearance was not too unlike that of fat pockets but was told it was the muscle instead.) I decided to have a fat graft to fill the area and smooth out the transition from the upper cheeks to the undereye.
pros: fat is a natural filler and will not be rejected by the body and the results could potentially last longer than artificial fillers
cons: expense and results are not what I expected