... granule in different depths and shocking make fusion energy, and the deepest receptor can get granule in 3CM thick of skin, and ... skin.3, nursing process, comfortable, painless, no trauma.4, the operation is simple and easy to use.5, low cost, quick return ... . 10000 times per second is called frequency current, When the RF wave action on the skin, the dermis collagen fiber is heated to 45 degrees ...