Whenever you see the fair face of a celebrity, are you envious of it? The stars have a lot of pressure, how come their skin is still so good, no acne, and no acne marks? Is there any maintenance mystery in it? Whenever you see the pimple marks on your own face, you are not quite bothered? In fact, you do not need to envy the stars that fair face, now there is a way to quickly remove acne, without leaving traces, so that you have the stars that fair face, that is photodynamic therapy beauty technology. Acne, also known as acne, is a chronic inflammatory skin disease of the sebaceous gland units of hair follicles, mainly in adolescents, and has a great impact on the psychological and social aspects of adolescence, but can often be naturally reduced or healed after puberty. The clinical manifestations are characterized by polymorphic lesions such as acne, papules, pustules, and nodules that occur on the face. Photodynamic therapy uses specific light to kill the anaerobic bacteria inside acne and repair the normal tissue cells of the skin to achieve anti-inflammation and clear acne. It has a wide range of applications, such as dermatology, cosmetology, and physical therapy, and is mainly applied to the irradiation of human soft tissues to achieve anti-inflammation, analgesia, anti-infection, repair, and effects. The clinical characteristics of photodynamic therapy (1) targeted – directly to the target tissue; (2) small trauma, the role in the local; (3) does not hurt the normal tissue; (4) less toxic; (5) can be repeated treatment, safe. Contraindications: (1) Childbirth and pregnancy; (2) Bleeding tendency; (3) Autoimmune system disorders or albinism; (4) Photosensitivity; (5) Metabolic disorders and their photogenic rash immediately stop use; (6) Customers taking photosensitive drugs are prohibited to use.