Fat transfer — the harvesting of fat from one area of the body and its injection into another — is one of the most appealing concepts in plastic surgery. It uses the patient's own tissue, leaves no foreign material behind, and can achieve natural, long-lasting results. The difficulty has always been consistency: how much of the transferred fat survives, and how reliably can that survival be predicted and reproduced from one patient to the next.

I have recently completed the BEAULI training course in Berlin and am now offering this technique to suitable patients. It represents a significant step forward in how fat transfer can be performed, and I want to explain what it involves and who is likely to benefit.

Why Standard Fat Transfer Has Limitations

In conventional lipofilling, fat is harvested by syringe or suction, processed — usually by centrifugation — and then injected into the recipient site. Each of these steps carries risk of damage to the fat cells. High suction pressures during harvest rupture cell membranes. Centrifugation, while effective at separating usable fat from fluid and oil, applies forces that further stress the cells. Handling the fat in open containers exposes it to contamination and temperature change. By the time the fat is injected, a proportion of the cells are no longer viable, and the ultimate volume retained is difficult to predict.

This unpredictability has been the main limitation of fat transfer as a technique. Results can be excellent, but the degree to which volume is maintained over time has varied considerably between surgeons and between patients.

What the BEAULI Protocol Does Differently

BEAULI — Berlin Autologous Lipotransfer — was developed in Berlin as a standardised, reproducible protocol for large-volume fat grafting. It addresses the main causes of cell damage at each stage of the procedure.

Harvest is performed using water-jet assisted liposuction, in which a fine, controlled jet of tumescent fluid gently dislodges fat cells before they are aspirated. This is substantially less traumatic to the cells than conventional suction-based harvest, where the mechanical forces involved in drawing tissue through a cannula can cause significant damage. The fat cells arrive at the collection system in better condition than with standard techniques.

Processing uses the LipoCollector, a closed filtration and sedimentation system. The fat is separated from blood, fluid, and cellular debris without centrifugation. Avoiding centrifugation matters because the G-forces applied during spinning, while variable, are a recognised source of cell damage. The closed system also means the fat is never exposed to the open environment, reducing contamination risk and maintaining temperature more consistently throughout the procedure.

The result is a graft that contains a higher proportion of intact, viable fat cells at the point of injection. Published data using MRI volumetric assessment at six months show fat retention rates of around 76%, which compares favourably with the wide variation seen with conventional techniques.

Where Fat Transfer Is Used

Fat transfer has a wide range of applications, and BEAULI is suited to most of them. In my practice the technique is most commonly relevant in the following settings.

Breast augmentation without implants. For women who want a modest increase in breast volume and have sufficient donor fat, lipofilling can achieve a natural result with no implant and no implant-related risks. It suits women who are concerned about implants, who have had implants removed, or who simply want a more modest change than an implant would produce. It will not achieve the same volume increase as an implant, and realistic expectations matter, but for the right patient it is an excellent option.

Upper pole volume loss after pregnancy and breastfeeding. One of the most common complaints I hear from women who have finished their families is that the upper part of the breast has lost its fullness. The breast may remain a reasonable size overall, but the characteristic fullness of the upper pole has gone, leaving a flatter, slightly deflated appearance at the top that clothing and even a well-fitted bra struggle to address. This is a group in whom fat transfer works particularly well. The volume needed is modest, the recipient site is receptive, and the result — restoring a natural curve to the upper pole without an implant — is one that patients find very satisfying.

Breast reconstruction and refinement. Fat transfer is an important tool in breast reconstruction, whether to improve the contour of a flap reconstruction, to address areas of thinning or irregularity, or to build volume incrementally following tissue expander-based reconstruction. The improved graft survival achievable with BEAULI makes it particularly useful in this context, where multiple sessions might otherwise be needed.

Implant illness and implant removal. Some women who have their implants removed are left with significant volume loss and soft tissue changes. Fat transfer can help restore a more natural contour in this group, though the degree of recovery depends on the quality and quantity of remaining tissue and available donor fat.

Body contouring. Fat harvested during BEAULI can be used to correct contour irregularities elsewhere: improving shape after weight loss, correcting asymmetries, or refining areas where previous liposuction has left an uneven result.

The Donor Site

Fat is most commonly harvested from the abdomen, flanks, and thighs, though the inner knee and upper arms can also be used. The water-jet harvest leaves these areas with a degree of improvement in contour, and patients typically find it a more comfortable experience than conventional liposuction. The key practical requirement is that there must be sufficient donor fat available: patients who are very lean may not have enough to achieve a meaningful transfer volume, and this is something assessed carefully at consultation.

Training in Berlin

The BEAULI protocol is not simply a technique that can be adopted from reading a paper. The water-jet harvest system and the LipoCollector require hands-on training to use correctly, and the standardisation that makes BEAULI's results reproducible depends on following the protocol precisely. I undertook the formal training course in Berlin, where the technique was developed, and am now offering it to patients at my clinics.

If you are considering fat transfer for breast augmentation, breast reconstruction refinement, or body contouring, and would like to discuss whether BEAULI is appropriate for your situation, I would be pleased to see you in consultation.