As people's pursuit of beauty becomes more and more perfect, we aim at satisfying people's pursuit of beauty in terms of beauty.provision of ND: YAG, ER: YAG and other categories of crystal laser optical system. and in the traditional hair-loss series of beauty optics, we use real sapphire medium conduction to output more perfect, more uniform light beams.and use advanced measurement devices to accurately control the energy density of optical components.sapphire also uses a semiconductor cold to cool the skin and does not harm the skin tissue of the human body.