Cryolipolysis or CoolSculpting uses the scientific principle that fat cells are more sensitive to temperature than your skin cells, which means that the surrounding tissue will be left unscathed and will not be damaged by the intense temperature.
The onset of the cell death process is called “apoptosis”. By destroying your fat cells with cold temperature, this destruction then triggers the fat cells to release energy in the form of heat - or in other words, burns calories.
In the treatment room, aesthetic doctors place cooling paddles that act as vacuums against affected areas of the body such as your love handles or your waist. These then get to work on focusing on your fat cells, crystallizing them to the point of “cell suicide”.
The suction and cooling sensation you may feel are quite tolerable, as many have reported in their own experiences.