Treatment theory 808nm Diode laser+RF clinically proven to deliver safe and effective hair removal on all skin and hair types. It is performed using gold standard 808nm diode laser technology, with energy penetrates deep into the dermis with high average power and a rapid 10 pulse-per-second repetition rate to heat the hair shaft and hair follicle, rather than destroy the oxygen organization around hair follicle. Meanwhile, contacting surface cooling technology applied on the Sapphire Dual-Chill Tip can eliminate the heat effect attributed to optical energy, greatly improving both the treatment performance and safety. RF could promote the 808nm laser light into deeper target tissue and at the same time gained popularity in skin rejuvenation and skin tightening.