Non-surgical liposuction techniques use laser energy, radiofrequency, ultrasound or cold (cryolipolysis) to reduce fat. Devices are applied directly to the skin of the treatment area and do not employ injections (as in injection lipolysis) or incisions (as in laser assisted liposuction). Although fat loss is more subtle with non-surgical lipolysis techniques compared to surgical liposuction, non-surgical lipolysis techniques have several advantages including reduced risk, reduced cost, and reduced healing time. Laser, radiofrequency, and ultrasound techniques provide additional advantages of tissue tightening. Because there is no suction involved, terms such as laser lipolysis, cryolipolysis or body contouring are preferred to non-surgical liposuction.