Cavitation is based on low frequency ultrasound. The heat (minor effect) and pressure wave (major effect) lead to millions of vibrations per second that enter through the epidermis and dermis. The fat cells do not have the capacity to withstand the vibrations, the effect of cavitation easily breaks them, After disruption of fat cells it turns triglyceride into glycerol and fatty acids. Overall the fat cells will rupture and thereby achieve the effects of losing weight, tightening skin and body contouring. Before and after each session you must drink 1-2 liters of water to flush and eliminate the liquefied cells.