The human skin needs to be maintained regularly because it constantly produces waste due to metabolism and is constantly attacked by various UV rays, bacteria and dust. Laser whitening is a medical aesthetic that uses new modern technology to achieve whitening effects on the human body. However, since everyone reacts differently to laser treatment, the whitening effect also varies. Some beauty lovers may do it once and see the effect at that time, while some of them may need some time after the laser treatment to see a more obvious effect. Others may need to do a course of treatment, i.e. 3-5 times, before they can see the obvious results. And usually a course of laser whitening can last about 1 year. Regular skin care is recommended after laser surgery to better maintain the treatment effect. Also, it can be done together with other programs, such as hydrafacial injection, which can make the whitening effect more lasting. It is important to pay attention to sun protection and proper skin care after laser whitening in order to keep the skin clean so that the whitening effect can last longer.