During March to June,its hot season for laser hair removal project, and there are a lot of laser hair removal devices in the market. And the prices also are varing. So what kind of laser hair removal device is best? And what is the difference between 808nm diode laser and coomon OPT hair removal device? Some experienced operator may consider about the treatment effect, while some newer will think about the price maybe. But we suggest that to buy a laser device is to make money, so the cost-effectiveness should be most important. So we ‘d better learn more about the laser difference and then make a decision. 808nm diode laser adopts 808nm wavelength laser to directly act on the melanin in the hair matrix of the target tissue, heating the hair follicle above 75℃, the hair follicle is heated and coagulated and loses its activity, thus achieving the purpose of permanent hair removal without harming normal skin tissue. The principle of OPT hair removal is to use strong pulse light with a wide spectrum of 610-1200nm, and a wide range of adjustable pulse width. Therefore, it can remove hair from different colors and different depths of human skin. The selective photothermal principle of the strong pulse light source is used. The melanocytes in the hair follicle absorb the light of a specific wavelength band to make the hair follicle generate heat, selectively destroy the hair follicle, and rapidly increase the temperature of the hair follicle, thereby avoiding the The surrounding tissue produces heat damage while achieving hair removal. From this point of view, both the 808nm diode laser hair removal instrument and the OPT hair removal instrument can achieve the effect of permanent hair removal; We observed that: the small power 808nm diode laser hair removal instrument does not necessarily have the effect and comfort The real OPT is good; the inferior OPT made to attract customers to reduce various costs is only used as a tool for extension customers, and it cannot be said in general that OPT hair removal technology will not work. We are researching here in China beauty industrial domesticly for more than ten years and it is clinically certified technology of course. But always you will get what you are paying for.