Use 36 micro needles as electrodes to reduce the pain during the treatment NEEDLE DEPTH:0.5mm, 1mm, 1.5mm Principle of PINXEL RF ØPINXEL is minimal invasive fractional RF with 36 electrodes. It provides direct heat both epidermis and dermis with precise depth control from 0.5mm to 1.5mm.ØIts efficient fractional radiofrequency enable capability of achieving fractional and continuous treatment ...