Reading Time: 2 minutesThe laser toning system used in our clinic is PASTELLE PRO by Wontech Technology. This device is the world's most advanced and latest Q-switched Nd:YAG laser that has been introduced in Japan. Our clinic was the first in Japan to introduce it and uses it in daily practice. Compared to conventional YAG laser devices, various irradiation modes have evolved, and there are a wide variety of applicators, so it can be used for many diseases and cosmetic treatments. Recently, I gave a lecture on the basic principles and theories of lasers and PASTELLE PRO at the beauty community of INFIX Co., Ltd., which is also a domestic import agent. The world of lasers is constantly evolving, and new theories and systems are being introduced, so we clinicians also need to study. It is also true that there is a dark side of cosmetic surgery, where nurses are in charge of managing, operating, and irradiating the laser. I would like doctors to take pride in their daily practice and use the latest knowledge and experience to ensure that patients receive the maximum effect and satisfaction, rather than thinking of it as just laser treatment.