In Yixing, experts said that photon rejuvenation is a photochemical effect produced by strong light irradiation, which changes the molecular structure of collagen fibers and elastic fibers in dermis and tightens the skin immediately. Generally, the effect is obvious after 2-3 times. It can enhance blood vessel function, and the light and heat generated by photon rejuvenation can promote blood circulation, enhance blood vessel function, fade wrinkles and shrink pores. The skin will become smooth and delicate.