Nonsurgical body contouring is also known as nonsurgical fat reduction. There are a variety of nonsurgical fat reduction procedures. These procedures reduce or remove stubborn pockets of fat to contour and shape different areas of the body. Most nonsurgical fat reduction treatments are based on one of these four principles: Cryolipolysis, or controlled cooling, uses freezing temperatures to target and destroy fat cells. Laser lipolysis uses controlled heating and laser energy to target fat cells. Radiofrequency lipolysis uses controlled heating and ultrasound technology to target fat cells. Injection lipolysis uses injectable deoxycholic acid to target fat cells.