... realign and grow, then gets treatment effect. Bio-polar RF release energy at the same time, with the selective absorption ... Sapphire wave guideBrief IntroductionE-light applies three core technology, IPL, RF, and epidermis cooling. It combines the advantage of IPL and ... selectively, and the skin also absorbs RF energy, on the other hand, the RF-surface-touch cooling technology removing the discomfort ...