... Protable Monopolar RF Beauty Machine for Home UseTake Hongnice,Take Beauty 1.RF PrincipleProtable Monopolar RF Beauty Machine for Home Use takes that epidermis balances ... movement,vibration or attrition,then produce heat energy.At the same time,under effect of polariaed molecule resonance,it ... collagaen tissue of dermis layger. When deep collagen tissure is heated up to 45 centigrade to 60 centigrade,it ...