As fat transfer or fat grafting and fat banking are turning up in more patient conversations, we explore this procedure. By harvesting fat once and storing it, it can be used for facial treatments later. The fat is injected back into the patient instead of dermal filler. But is it a credible option for your aesthetic clinic?
The evidence is mixed, and UK regulation is shifting.
This guide explains what fat banking and fat transfer are, where in the face it can be used, what’s involved in offering this procedure and the evidence behind it, so you can make a confident decision.
What Are Fat Banking and Fat Grafting?
Fat grafting is the process of harvesting a patient’s own fat, processing it and injecting it elsewhere. You’ll also see it called lipofilling, autologous fat transfer or simply fat transfer.
Fat banking is the storage step. Harvested fat is cryopreserved, so your patient can return for top-ups without requiring another liposuction procedure.
Nanofat and stromal vascular fraction
Some clinics offer nanofat or stromal vascular fraction (SVF). These are finer preparations, generally used for skin quality rather than volume.
Where did fat grafting come from?
The first recorded fat grafting procedure was in 1893, so this isn’t new.
When modern liposuction was developed in the 1980s, harvesting became more practical and demand grew. Uptake is now substantial with one systematic review estimating more than half a million facial fat grafting procedures happen worldwide each year.
What is new is the banking element. Most cryopreservation research has been laboratory or animal based. However, clinical data on banked fat is far thinner than data on fresh grafts.
How Does Fat Banking Work?
The process has four steps:
- Fat is harvested, usually by liposuction
- It’s processed to separate fat from oil and fluid
- It’s frozen, ideally with a cryoprotectant and controlled cooling
- It’s thawed and injected at a later session.
Method matters. Researchers argue that simply freezing fat in liquid nitrogen shouldn’t be treated as a standard method. They state that viability is poorly maintained and absorption is higher.
Optimal protocols for fat banking appear to need a cryoprotective agent plus controlled freezing and thawing. Home freezers are certainly not the answer!
Where in the body is fat harvested from for transfer?
Fat harvested for later injection is usually taken via liposuction from any of the following areas:
- Abdomen (the most common donor site)
- Inner and outer thighs
- Flanks and hips (provided there’s enough volume)
- Some surgeons may use the arms or knees if the main sites don’t have enough fat.
Does the donor site affect quality? At this stage, the evidence is unclear. Site choice is usually driven by practical factors:
- How much fat the patient has available
- Where the patient wants to reduce volume
- Surgeon preference and technique.
How Long Can Harvested Fat Be Stored?
There’s no definitive answer as to how long donor fat can be stored as results depend heavily on the protocol.
One study of fat frozen at -18°C found viability fell by:
- 34% after 1 month
- 60% after 3 months
- 80% after 6 months.
Another study found fat kept at 4°C for 72 hours retained 98.93% viability, against 75.31% at -20°C. The authors recommended fresh fat unless cold storage is unavoidable.
Newer techniques appear to report better results. An in vitro study found that patented cryopreservation preserved adipocyte viability over short and mid-term storage. A review also suggests cryopreserved SVF gel gives fewer complications and better retention than cryopreserved fat.
A 2023 paper noted that no successful investigations of long-term aspirate preservation for later grafting had been conducted. This suggests, at this early stage, it’s wise to treat all fat banking claims with care.
What Does the Evidence Say About Results and Safety?
Retention is the headline limitation.
- A meta-analysis of 27 studies (1,011 patients) found a pooled facial fat retention rate of 47%, so roughly half the injected volume may remain
- Reported ranges run from 20% to 80%
- Complication rates are often assumed to be around 2%, but the true rate is unknown
- Study averages ranged from 1.5% to 81.4%, showing patchy reporting.
Additionally, severe adverse events do occur, including complications after intravascular injection or migration. Furthermore, there’s no consensus on prevention or treatment in the face.
Which Areas of the Face Can be Treated with Fat Transfer?
Published reviews focus mainly on the periorbital area and the temples. Aesthetic practitioners also use fat in the midface, nasolabial folds, chin and lips.
For eyelids and the periorbital area, a meta-analysis of 4,046 patients reported a satisfaction rate of 90.9% and a complication rate of 7.9%. Common complications were oedema, chemosis and contour irregularity.
Temples are trickier as the anatomy can lead to fat necrosis, irregularities and low retention.
How Does Fat Transfer Compare With Dermal Fillers?
Fillers and fat solve overlapping problems in different ways. Here’s how they compare.
Where fat has the edge:
- Fat uses the patient’s own tissue, with no foreign product
- It can restore volume and may improve skin quality
- Fat that survives is living tissue.
Where fillers have the edge:
- Treatment is quick, with no donor site
- Results are more predictable
- Hyaluronidase can dissolve hyaluronic acid-based fillers if complications such as vascular events occur.
Fat also carries an extra burden when it comes to complications management. One review of 416 cases reported a 5.5% complication rate, with donor site contour irregularity and induration each at 1.2%. Retention is unpredictable, and you can’t dissolve fat as you would hyaluronic acid.
Vascular risk exists with both options so having a complications management plan in place is crucial. Please note, whilst Aesthetics Referral Centre subscribers may refer patients with complications from soft tissue injectables including dermal fillers, biostimulators and botulinum toxin, fat grafting is currently excluded from this cohort.
Is Fat Grafting Permitted in the UK?
At present no UK law prohibits autologous fat grafting, and surgeons perform it routinely. Regulatory considerations primarily relate to surrounding aspects of the procedure, rather than the fat grafting itself.
Fat harvesting
Providers that employ healthcare professionals for cosmetic liposuction already need CQC registration. So the harvesting step already sits within a regulated activity. However, with the recent proposals for regulating high-risk cosmetic procedures for England, this requires further exploration, which we consider below.
Fat banking (storage)
The Human Tissue Authority (HTA) regulates storage of tissues and cells for human application under the 2007 Quality and Safety Regulations.
One published review describes a 48-hour allowance for storing autologous skin without a licence. Fat banking would run well past that so we recommend you contact the HTA before you decide on a storage service.
Would Fat Transfer Fall Under the New Aesthetics Regulation Proposals?
On 21st October 2026, the Department of Health and Social Care released proposals for aesthetics regulation relating to the high-risk category of cosmetic procedures. The public consultation ends in January, with the final legislative proposals due to be presented to Parliament in Spring 2027. This relates solely to England, however, joining-up legislation across the UK has previously been discussed.
These proposals creates two new activities which require providers to have CQC registration:
- Surgical procedures for cosmetic purposes, restricted to GMC-registered doctors
- Non-surgical red category cosmetic and wellbeing procedures, restricted to regulated doctors, dentists and independent prescribing nurses, midwives and pharmacists.
The draft covers any procedure introducing a product derived from human blood or plasma, and names cosmetic PRP as an example. It also covers cosmetic procedures that include a separate anaesthetic injection.
So where does fat transfer sit? The proposals don’t name autologous fat transfer, so this is not yet defined. Additionally, they don’t say whether facial fat injection counts as a filler procedure. These points are worth considering if you’re responding to the consultation.
That said, these three points, which are covered in the draft, are relevant:
- Filler into any part of the body other than the face counts as cosmetic surgery, so would be restricted to doctors only
- Liposuction is already a regulated surgical procedure
- Separate anaesthetic injections for cosmetic purposes are in scope.
Would fat grafting be limited to CQC registered doctors only?
Under the current draft proposals for England, fat transfer would not automatically be limited to doctors only. As a high-risk non-surgical procedure, it could potentially be performed by the wider group of regulated healthcare professionals inside a CQC registered provider.
The harvesting step is almost certain to be restricted to doctors only as liposuction is classed as cosmetic surgery. We look forward to reading the final legislation for confirmation.
Should You Add Fat Transfer to Your Treatment Menu?
There are five key questions that should help you to decide if you should be offering fat transfer services to your patients:
- Are you properly trained and is it within your scope? Harvesting is surgical, so check with your regulator and insurer
- Do you have access to CQC registered premises?
- Can you manage fat grafting complications?
- Can you explain retention and limited banking evidence in plain terms?
- Do your patients want it? If there’s no or low demand, it may not be cost effective yet.
For many aesthetic nurses and cosmetic dentists, a referral partnership with a surgeon is the lower-risk route to offering fat transfer treatments. For doctors with surgical training, it’s a decision about demand, premises and consent.
Master the cornerstone aesthetics treatments first
Training underpins every option. Whilst we don’t offer fat transfer courses, Harley Academy’s JCCP-approved aesthetics training covers facial anatomy, evidence-based soft tissue injection techniques and complications management. These are the foundations for effective facial aesthetics procedures and a sound understanding of these principles, paired with supervised, practical experience, underpins safe clinical practice.
If you’re a beginner, just getting started in aesthetics, fat transfer is not for you. You need to master the basics first, with cornerstone treatments such as botulinum toxin and dermal filler. Once you’re experienced in these and have a deep comprehension of what’s involved, you can start to build your confidence before exploring more advanced procedures and techniques.
As the speciality evolves, and more avenues and treatments become available, so too does your career potential in aesthetic medicine. But you don’t need to chase every trend. Your skills and treatment menu should develop in line with your confidence, competency and patient demand. Just make sure you’re working from a solid foundation built on standardised, evidence-based approaches and you’ll be able to go from strength to strength.
If you’re a healthcare professional and you’d like personalised advice on building a successful career in medical aesthetics, our Courses team can help. Book a call for a date and time that suits you and they’ll chat through your best options, and answer any questions.
All information correct at time of publication
