Research is ongoing about the mechanism of<unk> . The effects of<unk>  appear to be limited to a specified set of wavelengths of laser, and administering<unk>  below the dose range does not appear to be effective. Photochemical reactions are well known in biological research, and<unk>  make use of the first law in photochemistry (Grotthuss-Draper law): light must be absorbed by a chemical substance in order for a photochemical reaction to take place. In<unk>  that chemical substance is represented by the respiratory enzyme cytochrome c oxidase which is involved in the electron transport chain in mitochondria, which is the generally accepted theory.
Low-level laser therapy
GreenLight Laser Therapy
Ultraviolet light therapy
Laser surgery
Laser hair removal
Photodynamic therapy
Laser blended vision
Laser coagulation