Direct high frequency increases activity in the basal layer of the skin, improves skin texture and defense against bacteria. It has a microbicidal and antibacterial effect due to the formation of ozone. It limits mucous secretions, drying, and healing of pustular infections. The improvement of lymphatic and venous blood circulation produces improved skin texture and balance of oiliness and moisture. Because there is no polarity or chemical action, chemicals cannot survive on the skin. There are no harmful effects on nerve cells.