Radiofrequency uses electric current to penetrate and heats the skin’s depths, without overheating the epidermis.
This current induces electrons in the body, and natural resistance to their movement creates heat. Using good equipment, the effect can take place at a depth of 15-20mm, or even deeper.
At the end of the treatment, the surface temperature should be 42-43°C, which roughly corresponds to a working tissue temperature of 52-62°C. This increases micro-circulation and cellular activity, notably among the fibroblasts which produce the skin cells.
Depending on the number of electrodes, radiofrequency can be monopolar (first picture), bipolar (second picture) or multipolar (third picture).