Radiofrequency (RF) therapy, also called radiofrequency skin tightening, is a nonsurgical method of tightening your skin. The procedure involves using energy waves to heat the deep layer of your skin known as your dermis. Like laser and LED treatments, radiofrequency uses energy to stimulate collagen, hyralonic acid and elastin production, but the heat energy is electrical rather than light based. RF can be used to treat sagging skin, fine lines, wrinkles and cellulite. This treatment can be used for the face and body.