Technology guide
Ultrasonic cavitation (lipocavitation)
Lipocavitation uses low-frequency ultrasound to weaken fat cells. Principle, settings and where the technique fits among slimming treatments.
Definition
Ultrasonic cavitation, or lipocavitation, is a non-invasive slimming technique. Ultrasound at around 40 kHz creates microbubbles in the fatty tissue; as they implode, they disrupt the adipocyte membrane, and the cells release their fat. Whereas cryolipolysis crystallises lipids, cavitation acts mechanically.
What happens after the session
The released triglycerides are then eliminated by macrophages and the lymphatic system. Destruction is rapid, elimination gradual: results build up over several weeks and several sessions.
The settings that matter
Frequency around 40 kHz, power per cm², duration per area, applicator diameter and session frequency. The source describes courses of 6 to 12 sessions, at one or two per week, with at least 48 hours between sessions to allow time for drainage.
Cavitation, cryolipolysis or EMT?
Cavitation requires several sessions but acts quickly on fat. Cryolipolysis is performed in one to three sessions, with slower results. EMT strengthens the muscle and acts indirectly on fat. Cavitation and EMT complement each other; cavitation and cryolipolysis on the same area overlap.
Comfort and temporary effects
In principle, no pain: a vibrating sensation, sometimes slight warmth. Redness or slight swelling may appear and disappear within a few days. Properly applied contact gel limits discomfort.