Simply speaking, the radiofrequency technology transform current to heat, which penetrates skin to produce to increase collagen production, skin elasticity, and fat cells breaking.
There are two types of radiofrequency: monopolar and bipolar.
Monopolar means the radiofrequency curent passes from one electrode to another, and their distance is far and can be adjusted freely. So the monopolar energy penetrates deeply by a special frequency, to help break fat cells which will be picked up by the lymphatic system, thus cellulite and body contouring can be improved.
Bipolar means the current works in a short distance because the electrodes are close together, so the energy penetrates less deeply by another special frequency, to help strengthen the skin, remove wrinkles, maintain skin firmness, and lower the multiplication of free radicals.