Laser therapy department (mainly for patients with birthmarks, with rich clinical experience and cases on nevus OTA, nevus flammeus, congenital pigmented nevus and coffee spots), laser cosmetology department (mainly for chloasma, freckles, large pores, skin aging, rough texture and other issues), plastic cosmetology department (mainly for rhinoplasty projects such as double eyelids, opening inner canthus, improving nose collapse and humpback), and mandibular angle grinding. Fruit acid skin rejuvenation is mainly used for closed acne, which has the functions of removing acne, reducing pores, whitening skin and delicate texture.