RF needle system through the special design of many needle point array, the high speed digital motor controls order through the epidermis and the dermis accurate to control the depth of 0.25-3 mm,again by the end of lattice needle release RF,stimulate collagen and elastic tissue,and is not themal damage skin layer potentical.When skin tissues through this process,the epidermal layer is safe,RF energy can well to penetrate to the dermis,stimulate collagen protein hyperplasia,not only is the best way to improve the scars,but also long-term tightening skin wrinkles induced the good method. Cryo helps SRF and MRF play its function.