If you have come across the term 6 in 1 cavitation UK while researching body sculpting, you may be wondering what all six functions actually do — and whether they are genuinely different from one another or simply marketing language for the same technology. The short answer is that each function serves a distinct purpose, and used in the right sequence they can complement each other well. This guide breaks each one down clearly.
What Is a 6-in-1 Cavitation Machine?
A 6-in-1 machine is a multi-function device that houses several body and face technologies in a single unit. Rather than requiring separate pieces of equipment for each technique, the practitioner can switch between handpieces or settings during one session. The exact combination of functions varies by manufacturer, but the most common pairing includes ultrasound cavitation, radio frequency (RF) in one or more modes, a vacuum therapy attachment, lipo laser pads, and sometimes a dedicated facial RF probe.
Understanding what each function does helps you ask informed questions during a consultation and set realistic expectations before you begin a course of treatment. For a broader overview of non-surgical body sculpting options, see the non-surgical body sculpting guide.
Function 1: Ultrasound Cavitation
Ultrasound cavitation is typically the headline feature and usually the first step in a session. Low-frequency ultrasound waves are applied to the skin via a handheld probe. These waves create microscopic bubbles in the fluid surrounding fat cells. When the bubbles collapse, they create a pressure that disrupts the fat cell membrane, releasing the contents into the interstitial fluid.
The body then processes these fatty acids through the lymphatic system and liver over the days that follow — which is why staying well hydrated and avoiding alcohol after a session is consistently recommended. This function targets localised fat deposits and is most commonly used on the abdomen, flanks, thighs, and upper arms. Learn more about how this works in the dedicated ultrasound cavitation and RF guide.
Function 2: Radio Frequency (RF) — Body
Radio frequency uses controlled heat to stimulate collagen and elastin production in the deeper layers of the skin. The heat causes existing collagen fibres to contract and triggers the body’s wound-healing response, which gradually produces new collagen over the weeks following treatment.
On the body, RF is applied after cavitation and is particularly useful for addressing skin laxity in areas where fat volume has been disrupted. It also supports circulation and lymphatic flow. Results from RF build over several weeks as collagen remodelling takes place.
Function 3: Radio Frequency — Face or Multipolar RF
Many 6-in-1 devices include a separate, smaller RF probe intended for the face and neck, or a multipolar RF setting that delivers energy via multiple electrodes simultaneously for more even heat distribution. The principles are the same as body RF, but the parameters are adjusted for thinner, more delicate skin. Face RF is used to improve the appearance of skin firmness and texture rather than for fat disruption.
Function 4: Vacuum Therapy
The vacuum handpiece uses gentle suction to lift the skin and underlying tissue. This mechanical action has two main effects: it stimulates lymphatic drainage by encouraging fluid movement through the lymph vessels, and it increases local circulation, which supports the removal of waste released during cavitation.
On its own, vacuum therapy can be used to help improve the appearance of cellulite by loosening the fibrous bands beneath the skin’s surface and encouraging better drainage. As part of a 6-in-1 session it is typically used after cavitation to help mobilise the released fatty acids and reduce any temporary fluid retention. Wumi offers this as part of her non-surgical body sculpting and body contouring treatments.
Function 5: Lipo Laser
Lipo laser (also called low-level laser therapy or LLLT) uses low-energy laser pads placed on the skin. Unlike surgical laser procedures, lipo laser pads do not cut or heat the tissue. Instead, the light energy is thought to temporarily increase the permeability of fat cell membranes, allowing their contents to be released more readily. The pads are typically left in place for 20 to 30 minutes and are often used alongside the other functions during a longer session.
Function 6: Sextupolar or Targeted RF
The sixth function on many machines is a variation of RF delivery — often described as sextupolar, octapolar, or tripolar RF. These terms refer to the number and arrangement of electrodes on the handpiece, which affects how deep the energy penetrates and how evenly it is distributed. A sextupolar probe, for example, delivers energy through six electrodes to create a more uniform heating pattern across a wider area, making it suited to larger body regions like the thighs or back.
How the Functions Work Together in a Session
A well-structured session typically follows a logical sequence. Ultrasound cavitation disrupts the fat cells first. Lipo laser pads may be applied concurrently or immediately after to assist with cellular release. Vacuum therapy then supports lymphatic drainage of the released contents. RF — body or facial — finishes the session by addressing skin firmness and supporting tissue recovery. The order matters, and a skilled practitioner will tailor the sequence to the treatment area and your individual goals.
For treatments targeting fat reduction in specific areas, a practitioner will select the relevant functions rather than applying all six indiscriminately.
What to Expect After a Session
You may notice the treatment area feels slightly warm or appears mildly red for a few hours. Drinking plenty of water is important in the 24 to 48 hours following treatment to support the lymphatic system. Avoiding alcohol and heavy meals during this window is also commonly advised. Any visible changes tend to be subtle after one session; results accumulate over a course.
Is 6-in-1 Cavitation Right for You?
These treatments suit adults who are at or close to a healthy weight and want to address localised areas of stubborn fat or skin laxity. They are not a weight-loss tool, and they are not a medical treatment. Certain health conditions, pregnancy, pacemakers, and active skin conditions in the treatment area are among the contraindications that a consultation will screen for.
If you are in Kent, London, or Essex and would like to explore whether a course of cavitation and RF treatments could be suitable for you, book a consultation with Wumi to discuss your goals and receive an honest assessment.
For a complete overview of every non-surgical option, see our complete UK body sculpting guide.
Non-surgical treatments have no downtime, but results build gradually and vary between individuals. Not a weight-loss or medical service. A consultation and suitability check are required; you must be 18 or over.