Many women, after reaching a certain age, will have many spots on their face under the dual effect of external stimulation and internal toxins, which brings them a lot of troubles. Such effect is stable and reliable. The most clinically used electromagnetic waves for removing pigmentation are 1. Q-modulated lasers, such as 532nm and 1064nm wavelength lasers, because the laser time is very short, the luminous time is in nanosecond level, at present, it can do 5-10 nanosecond, I call this kind of laser technology as laser gun technology, because the monochromatic laser can make the melanin particles instantly reach 3000 degrees high temperature and crush in a very short time. 2, there is also a certain wavelength range (430-1200nm) of intense pulsed light technology, clinically called IPL technology, I call this technology called photonic hurricane technology, this technology is also in a very short period of time (microsecond) issued a very strong photon flow, acting on the pigment particles and let the pigment particles cleavage, this technology and radio frequency electromagnetic wave technology combined, is currently very popular so-called E light technology, can use The combination of relatively small IPL energy flow and RF, reducing the damage to normal tissue with IPL alone (photon hurricane), if the operator can set a more reasonable parameters, the treatment effect is still relatively ideal. 3, monochromatic certain wavelength laser technology, this type of laser clinical do more applications, there are ruby laser, sapphire laser, erbium laser, holmium laser CO2 laser, because it is monochromatic continuous coherent light, so it can be made into a very fine laser energy flow, using polarizer technology, currently made a fractional laser, currently also using super pulse technology, we have a super pulse fractional technology, so that the use of this technology Electromagnetic wave technology can then be very good to solve many clinical problems.