Lip fat transfer is a procedure in which fat is harvested from one area of your body, typically the abdomen or thighs, and injected into the lips to add volume and definition. The surgeon uses liposuction to collect the fat, processes it, and then carefully injects it into the lips to achieve the desired shape and fullness. Because the filler material comes from your own body, there is no risk of allergic reaction to a foreign substance.

Candidates are generally those with naturally thin lips who want to increase volume and definition, or those seeking a more permanent alternative to temporary injectable fillers. You should have adequate fat reserves in areas like the abdomen, flanks, or inner thighs for harvesting. A qualified surgeon will assess your lips, skin quality, and overall health to determine if this approach suits your goals.

The procedure begins with liposuction to harvest fat from a donor site, which is then processed and purified. Once the fat is ready, the surgeon uses fine cannulas to inject it strategically into the lips. The entire process typically takes 1 to 2 hours, depending on the amount of fat being transferred and the complexity of the shaping.

Swelling and bruising are common for the first 1 to 2 weeks, with the lips appearing fuller during this period as inflammation subsides. Most people can return to light activities within a few days, though strenuous exercise should be avoided for 2 to 3 weeks. You may be advised to use ice and keep your head elevated to minimize swelling. Full results take several weeks to emerge as the swelling resolves.

Results vary because the body naturally reabsorbs some of the transferred fat; typically 30 to 50 percent may be reabsorbed over the first few months. The portion that remains tends to be permanent, though some patients choose a touch-up procedure after 6 to 12 months to maintain their desired fullness. Lip shape and contour can be refined during follow-up visits if needed.