... 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 ... , on the other hand, the RF-surface-touch cooling technology removing the discomfort and complications by high heat of IPL. Therefore, ...