Photorejuvenator is useful, the instrument uses photorejuvenation technology, the treatment efficiency of patients with facial chloasma, facial skin laxity, and facial capillary dilation can generally reach 95.0% and above. The light source of the photorejuvenation instrument is a high power xenon lamp, which can penetrate the epidermis into the dermis and be selectively absorbed by the melanin and hemoglobin in the tissue through the filter to obtain continuous wavelengths of intense pulsed light. Without destroying other tissues, the dilated blood vessels and pigmented damages are coagulated and fragmented, thus playing a therapeutic role. Moreover, the thermal and photochemical effects produced can rearrange the collagen fibers and elastic fibers in the deep part, promote type I collagen and type II collagen proliferation, make wrinkles reduce or disappear and pores shrink, and achieve the purpose of beauty. Photorejuvenator is mainly applied to epidermal chloasma, freckles, solar keratosis, secondary pigmentation, capillary dilation, capillary dilation rosacea, skin heterochromatosis, skin photoaging, natural skin aging, hirsutism and other diseases. However, it should be noted that photorejuvenation is less effective for people with darker skin tone and easy pigmentation. In addition, those with systemic or local inflammation, immune system defects, scarring, abnormal blood clotting, pregnant women and those taking aspirin and photoallergic drugs are also not suitable for photorejuvenation.