How to prevent fat absorption after fat transfer to lips?

After fat transposition to your lips there is nothing you can do to prevent the normal absorption of some of the fat. Having done this for more than 35 years I can say that the amount of fat that will remain will not be affected by normal activity including eating kissing etc. 

At this point there is nothing you can do to help. The grafting process / technique is the important step. Good LuckStephen M. Davis, MD, FACSGreen Hills Plastic Surgery

The lip is mostly muscle; muscle is a great recipient site for fat grafts.The lips tend to swell(more than other areas) for a number of reasons,so it may be resorption or swelling then reduction; personally I believe it is the latter.I agree with you; the less movement the better so the grafts can take.Best of luck 

Generally, after any type of tissue transfer, whether it be skin graft, cartilage graft, bone graft or fat grafts, immobilization is of some importance. That said, I don't think it's possible to immobilize lips. In order for transferred tissue like fat to survive, each piece of grafted fat has to develop a new blood supply. This usually happens between the fifth and eighth day after grafting. It's referred to as neovascularization. If the microscopic capillaries are disrupted during this phase, they can cut off the necessary blood supply to the grafted fat, causing it to die. I suppose if somebody theoretically kept their lips absolutely still for 10 days that fat grafting survival may be improved somewhat. Since this is not realistic, I suggest you just take it easy. Keep your fingers crossed that the amount of fat that survives will be the ideal amount. Sometimes getting the results patients want requires having a procedure done more than once if the amount transferred is conservative. In my opinion, it's easier to do the procedure twice than it is to remove excessive grafted fat.If you were treated by someone with ample experience, they should've gotten it just right for you.I hope your results turn out the way you wanted.Best of luck,Mats Hagstrom, M.D.