Before applying the device applicator, a gel liner is placed over the skin. The applicator is then applied directly over the liner. When the device is turned on, the targeted tissue is immediately suctioned into the cooling panels. The device is then adjusted to the target temperature. Panels gradually reach the precise temperature at which fat cells develop crystals. After the allotted treatment time, the panels and gel liner are removed and the tissue that has been treated is massaged to break up the fat cells that have clumped together within the cooling panels.