 Photobiomodulation, PBM, also known as low-level laser therapy, LLLT, is a non-invasive treatment that uses light energy to promote healing, reduce pain, and decrease inflammation. Light energy from red and near-infrared wavelengths interact with the body's cells, triggering a cascade of beneficial responses including increased ATP production, enhanced nitric oxide levels, and reduced inflammation. This biphasic dose response means that low doses of light are stimulatory, while higher doses are inhibitory. Additionally, PBM has been shown to reduce oxidative stress and upregulate antioxidants, making it an effective tool for treating many conditions. This article was authored by Michael R. Hamblin.