Radio Frequency Skin Tightening (RF) – is an aesthetic technique that uses RF energy to heat tissue and stimulate subdermal collagen production in order to reduce the appearance of fine lines and loose skin. The technique induces tissue remodeling and production of new collagen and elastin. This treatment is carried out on the face and body. It is one of the best technologies on the market to help improve the loss of elasticity. Collagen is the most common protein in the body which depletes with age.