Not all fat deposits are created equal. Some are large enough for a cryolipolysis applicator; others are smaller, more superficial, or in locations where precise targeting matters more than volume reduction. Cavitation is designed for exactly those situations.
What Cavitation Does
Ultrasonic cavitation applies low-frequency ultrasound waves — typically at 40kHz — through a handheld device pressed directly against the skin. The waves penetrate the subcutaneous fat layer and create micro-bubbles in the fluid surrounding the fat cells. These bubbles oscillate under the acoustic pressure and eventually implode.
The implosion of each micro-bubble releases a localised pressure wave strong enough to rupture the membranes of the surrounding fat cells. The cells do not die through apoptosis, as with cryolipolysis — their membranes are mechanically disrupted, releasing the lipid contents into the surrounding tissue.
The Science: What Happens to the Released Fat
When fat cell membranes rupture, they release triglycerides — the fatty acids stored inside. These are absorbed into the lymphatic system and transported to the liver, where they are processed and metabolised like any other dietary fat the liver handles. The cellular debris — the remnants of the ruptured cell membranes — is cleared by the immune system in the same way it handles other cellular waste.
This is why hydration matters during a cavitation course. The lymphatic system relies on adequate fluid to transport and clear the released contents efficiently. Drinking two to three litres of water on treatment days and the following day meaningfully supports the clearance process and helps the body process the treated area more completely.
Results build across a series of sessions — typically six to ten — as each treatment adds to the cumulative disruption of the fat layer in the targeted area.
Double Chin Treatment
Submental fat — the deposit beneath the chin — is one of the clearest indications for cavitation. The area is too small for a standard cryolipolysis applicator, sits in an anatomically precise location, and is one of the spots most resistant to diet and exercise-driven fat loss.
Cavitation's precision applicator works effectively in this area. The transducer head can be positioned accurately beneath the chin, and the treatment is well-tolerated in this location. A typical double chin protocol involves six to eight sessions, with results developing gradually across the course. The reduction in volume in this area can have a significant effect on facial profile even from modest overall fat loss.
How Cavitation Differs from Fat Freezing
Both technologies destroy fat cells. The clinical differences come down to mechanism, area suitability, and treatment approach.
Fat freezing uses an applicator that draws tissue in with suction and applies controlled cooling. It produces a larger per-session fat reduction in the treated area, but the applicator requires a sufficient volume of tissue to work on. It is better suited to larger deposits.
Cavitation works with a flat transducer pressed against the skin, making it adaptable to smaller areas, irregular anatomy, and locations where suction-based applicators cannot position correctly. It is a multi-session treatment by design, with results compounding across the series rather than arriving from a single session.
For some clients, both are used in combination: fat freezing for primary volume reduction in a larger area, cavitation for refinement and smaller adjacent deposits.
What It Feels Like
Cavitation is a quiet treatment. The ultrasound frequency is audible to the client as a faint buzzing or humming — conducted through the bone rather than heard through the air — but the sensation on the skin is minimal. Most clients describe it as gentle pressure and mild warmth.
Sessions typically run 20–40 minutes per area. There is no downtime. The most important instruction is to hydrate well on the day of treatment and the day after.
Session Expectations
A standard course of six to ten sessions, spaced one to two weeks apart, produces gradual and cumulative results. The fat reduction in the treated area builds session by session as more cells are disrupted and cleared. Visible changes typically begin after the third or fourth session, with the full result evident at the end of the course.
For a full picture of how cavitation fits alongside the other available technologies, the comparison guide maps all four side by side. The complete non-surgical body contouring guide covers combination protocols in detail — including pairing cavitation with EMS for clients who want both fat reduction and muscle definition in the same area. The Bali beauty guide covers the full range of treatments available at the center.
Rose Petal is a beauty center on Jalan Labuansait in Uluwatu offering cavitation and other body contouring treatments daily from 10 AM to 7 PM — with a lounge bar, sunset terrace, and co-working space. To book your appointment, visit rosepetalbali.com or message us on WhatsApp.
Beauty, refined.
