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 face, are you quite annoyed? 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 very 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. 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, repeatable treatment, safe. Contraindications 1, childbirth and pregnancy; 2, bleeding tendency; 3, autoimmune system diseases or albinism customers are prohibited; 4, photosensitive customers are prohibited; 5, metabolic disorders and its cause of photogenic rash immediately stop using; 6, is taking photosensitive drugs customers are prohibited to use.