Fat-melting procedures include laser treatment, ultrasound, radio waves and extreme cold, according to New York Magazine. These cosmetic procedures target excess fat on specific areas such as thighs or hips. They are not intended for general weight reduction.
Some physicians achieve optimal body sculpting in patients by combining traditional liposuction, which uses vacuum suction to remove fat, with lipolysis, a newer, non-surgical technique that applies heat from lasers to melt fat, reports Healthline. Lipolysis also stimulates the production of collagen, which firms and tightens skin. This is a benefit for liposuction users, who frequently experience sagging skin after the procedure.