Low-level light therapy consists of lasers or light emitting diodes at near-infrared wavelengths. At the status quo, LLLT devices are marketed as skin wound therapy, hair growth, and pain relief devices. It emits near-infrared light around 780nm near the surface of a skin where mitochondrial chromophores absorb photons. This causes a chain reaction of electron transport and ATP nitric oxide release, leading to signaling pathways. Ultimately signaling pathways activate stem cells leading to tissue repair and prevention of cell suicide.
For more information check out the poster:
Low-level Light Therapy