
What is Facial Fat Grafting (Autologous Fat Transfer)?
Facial fat grafting, medically referred to as autologous fat transfer and facial lipofilling, involves harvesting adipose tissue from a donor site on the body and transferring it to the face. Because the procedure uses the patient’s own living tissue, it is inherently biocompatible and carries little or no risk of allergic reaction or foreign-body rejection.
Fat is composed of adipose tissue, which includes not only fat cells (adipocytes) but also adipose-derived stem cells and progenitor cells. These cellular components contribute to a long-term rejuvenating effect, supporting natural improvements in skin thickness, cellular health, and overall tissue texture over time.
Depending on your specific anatomical goals, the harvested tissue can be processed and refined to different degrees:
- Structural fat grafting uses larger fat particles placed in deeper tissue planes to restore volume and facial contour.
- Micro fat grafting uses more finely processed fat for precise placement in specific areas.
- Nanofat grafting processes the fat further, producing a finer preparation suited to superficial injections that target skin quality concerns such as fine lines, wrinkles, and enlarged pores rather than volume.
When the transferred fat successfully establishes a localised blood supply and integrates with the surrounding tissue, the results can be long-lasting. This distinguishes autologous fat transfer from temporary options like dermal fillers or collagen stimulators, which break down over time and require ongoing maintenance sessions.
For patients presenting with pronounced skin laxity or advanced sagging, volume restoration alone may produce a heavy or unnatural appearance. In these instances, fat grafting is often considered with a surgical facelift to address both volume loss and structural tissue descent.
How Is Facial Fat Grafting Performed?
Fat Harvest
The first stage of the procedure is harvesting the fat from a donor site on the body. Common donor sites include the abdomen, flanks, and medial thighs. The harvest is performed through sub-centimetre incisions using a fine cannula, with local anaesthesia applied to the area. The volume harvested depends on the volume required for grafting and whether any additional body contouring is being performed at the same time.
Fat Centrifugation and Purification

Once harvested, the fat is processed by centrifugation to separate out the unwanted components, including oil, blood, local anaesthetic and other noncellular material, leaving a concentrated preparation of viable fat cells and associated stem cells.
Depending on the treatment goal, the processed fat may be further refined into nanofat grafts for more superficial injections targeting facial, skin quality concerns such as fine lines, wrinkles, and pore size, rather than structural volume.
Micro-Aliquoting and Injections
The prepared fat is then injected in tiny aliquots to the desired areas. Placement of fat in tiny aliquots is crucial to the survival of the fat grafts, as it allows the surrounding tissue to supply adequate blood flow to each deposit. Injecting in larger volumes reduces the likelihood of successful integration.
Anaesthesia Approaches and Comfort
The anaesthetic approach is determined by the scope of the procedure, the volume of fat being harvested, and the patient's preference. Dr Lee Hanjing will discuss the most appropriate option at consultation.
- Local Anaesthesia Without Sedation: For smaller-volume facial fat grafting performed in the clinic procedure room, local anaesthesia to the harvest and injection sites may be sufficient for patients who are comfortable with this approach.
- Local Anaesthesia With Sedation: Sedation can be arranged for patients who prefer to be more comfortable during the procedure, and is generally advisable where a larger volume of liposuction is being performed alongside the grafting.
- General Anaesthesia: For more extensive procedures, or where fat grafting is combined with other surgical work, general anaesthesia may be the most appropriate option.
On average, approximately 60% to 70% of the transferred fat successfully establishes a blood supply and integrates permanently. The portion that does not survive is naturally broken down, metabolised, and safely cleared by the body's lymphatic system over the ensuing weeks.
Preparing for and Recovering from Facial Fat Grafting
Preparation and aftercare both affect how well the fat grafts integrate and how the final result settles. Dr Lee Hanjing will provide specific instructions at consultation based on the planned procedure. The following outlines the general framework.
Before the procedure:
- Suspend Blood-Thinning Medications: Aspirin, non-steroidal anti-inflammatory drugs, anticoagulants, and certain supplements that increase bleeding should be stopped in advance. Dr Lee Hanjing will advise on the appropriate cessation window based on each patient's specific medications.
- Cease Smoking: Smoking impairs fat graft survival and wound healing. Patients are advised to stop smoking for at least four weeks before the procedure.
- Disclose Medical Conditions: Existing medical conditions and current medications are reviewed at consultation to confirm that the planned procedure and anaesthetic approach are appropriate.
After the procedure:
- Expect Swelling and Bruising: Both the harvest site and the grafted areas will swell and bruise. This typically settles within two to four weeks, though the final result continues to evolve over approximately three months as swelling resolves and the surviving fat integrates.
- Avoid Massage to Grafted Areas: Deep massage to the face in the weeks following the procedure should be avoided, as it can displace the fat grafts before they have established a blood supply, leading to migration or graft loss.
- Continue to Avoid Smoking: The four-week smoking cessation window applies after the procedure as well.
- Manage Discomfort with Oral Analgesia: Some discomfort at both the harvest site and the injection areas is expected. This is generally manageable with prescribed oral pain relief.
- Plan for Downtime: Overall downtime is typically less than one week, though social activities that involve close scrutiny of the face may require a longer adjustment period as swelling settles.
