A science paper published in 2014 explored the effectiveness of photobiomodulation (PBM) using novel polychromatic light sources vs red light for skin rejuvenation. The study investigates how non-thermal red and infrared light can improve skin appearance and stimulate collagen production, offering a gentler and more effective alternative to traditional skin rejuvenation methods like laser resurfacing or intense pulsed light (IPL). The study also compares red/infrared light therapy versus green, yellow and orange light therapy, in terms of skin rejuvenation (fine lines, wrinkles, skin roughness and skin collagen content)…

