Our LED Photodynamic Therapy device uses gene biological wave as light source, with a special light signal transmission technology, but not heat effect. During the treatment, photosensitive collagen could be used, and it could lead into hypoderma fast and efficiently, absorbed by cell, generate the most efficient photochemical reaction–enzymatic reaction, which can improve cell viability, promote metabolism, make skin secrete collagen and fibrous tissue; meanwhile, it increases white blood cell’s phagocytosis, and then comes to the effect of repair, rejuvenation, skin whitening, acne treatment.