Radio-frequency Body & Face TherapyRadio frequency (RF) therapy, also called radio frequency 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. Clinical studies have demonstrated an excellent safety profile on RF procedures for skin tightening, whether it be for vaginal rejuvenation, facial skin tightening, or body contouring.