The Zerona laser is the first non-invasive body contouring procedure to effectively remove excess fat. The low-level laser works by causing stored fat to be released from fat cells. Treatment involves an average of six sessions over a two week period. Patients lie on a table for 40 minutes (20 minutes front and 20 minutes back), while the laser does its job. The average result has been 3 to 9 inches lost from waists, hips and thighs with the six sessions.