Radio-frequency skin tightening is an aesthetic technique that uses radio frequency (RF) energy to heat tissue and stimulate subdermal collagen production in order to reduce the appearance of fine lines and loose skin.
Radiofrequency therapies have been used in medicine for more than 70 years. The treatments have become especially popular with patients who are seeking non-surgical tightening, with skin tightening falling.
In skin tightening and body contouring aesthetic treatments, RF waves are directed beyond the first layer of skin to the deep dermis and sub-dermal layers without impacting the epidermis. Different RF devices use different numbers and configurations of electrodes and varying electromagnetic fields to deliver RF waves below the skin’s surface and achieve their effects. The number of electrodes and their arrangement contributes to how the device reaches and maintains energy temperature and what patients experience during treatment. Monopolar arrangements, for instance, feature one electrode and require a return pad for the energy, which can cause heat spikes and inconsistent energy delivery. In comparison, more advanced RF systems employ multipolar radio frequency, where RF energy is evenly distributed across a number of electrodes for deeper energy penetration and more even delivery.