... waves 3) 2 BIO waves 4) LCD screen led light therapy IntroductionPhototherapy has long history, the ancient Greek, ancient ... rejuvenated in old age”. From the literal interpretation, it restores the youth and health by intense pulsed light (IPL). The photon ... lot of lights of different wave-lengths, there are infrared light, visible light (imply red, orange, yellow, green, black, orchid, purple), ...