As the most advanced radio frequency technology on the market, rf 3deep endymed works by emitting heat into the dermis, triggering the skin's natural healing process, and rejuvenating the look and feel of skin. This non invasive service is ideal for areas on the body that have lost their elasticity such as inner thighs, knees, arms, abdomen and will also reduce the appearance of stretch marks and scars. No downtime needed. Skin will continue improving for up to a year after the last treatment.