portable 7 heads spa skin tightening rf machine monopolar face lifting rf machine rf monopolar

monopolar rf it uses rf electric wave to produce heat exchange, p then produce heat energy. at same time,it heats collagen tissue of dermis layer. when deep collagen tissue is heated up to 45-60 degree, it will naturally produce instant shrinking, stimulate to excrete much new collagen to make up interspace of the shrinking or lost collagen protein, and make them rearray, rebuilt skin soft bracket, finally get tight skin, remove wrinkle, recover skin elasticity and luster.