High frequency electric wave launched by RF beauty equipment can stimulates anion and cation in the cell to generate heat by friction ,accelerates blood circulation of dermis and subcutaneous tissue, stimulates collagen rebirth and reconstruction, repairs aging and damaged collagen ,in order to tighten skin and reduce wrinkle The two electrodes of RF beauty equipment can separately set in each side of body. Only one electrode in the handle (insulating on the surface), in view of promote the depth launched by handle electrode and the deepest is above 20mm. There is no electricity between handle electrode and skin, its totally depends on launching electric wave. So the depth care really come true. Deep electric wave launched by RF300 beauty equipment makes the dermis collagen fibre tissue heated and shrinked immediately, caused the skin tightly. It can be used to treat pregnant wrinkle. Deep electric wave launched by RF300 beauty equipment produces heat damage to fat cell and it makes triglyceride released from fat cell. The triglyceride decomposed into FFA and Glycerol by the function of LPL and they are be drained away after body circulation. Thereby, the double functions of local thin body and good figure are perfect.