Ultrasonic Cavitation

What it does

A handheld device with gel, moved continuously over the area. Low-frequency ultrasound waves create pressure changes within the fatty tissue, forming tiny bubbles around the fat cells that expand and collapse. That is where the word cavitation comes from. The process disrupts fat cell membranes and releases what those cells were storing, which the body then clears through its normal lymphatic and metabolic pathways. This is why hydration and movement matter so much afterward.

Bronwyn is careful about how this gets described. Cavitation disrupts fat cells and releases what they were storing. It is not liposuction and nothing is surgically removed. Your body handles the rest through its normal processes, and how much changes depends on your body, your habits and how you support the work between sessions.

Important: cavitation works on subcutaneous fat, the soft pinchable fat sitting under the skin. It does not target the deeper visceral fat around the organs. Bronwyn assesses by hand before deciding to use it. If someone is dealing more with skin laxity than fat, she will lean on radiofrequency instead.

"I don't automatically cavitate an area just because someone wants it smaller."

What it feels like

Physically comfortable. Gel on the skin, the handpiece moving with slight pressure, a little like a massage with a device. Maybe some warmth or tingling. No pain.

The thing nobody warns you about is the noise. Because it is ultrasound, you hear a high-pitched ringing or buzzing, and it can sound like it is coming from inside your head rather than from the machine. Some people hear it clearly, some barely at all. It is not painful and it does not mean anything is wrong.

"Cavitation sounds scarier than it feels. After the first couple of minutes, clients aren't even thinking about it anymore."

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