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Scientific Glossary

Photobiomodulation (PBM)

Photobiomodulation (PBM) is the use of low-power red or near-infrared light to change how cells behave. Research mainly points to the mitochondrial enzyme cytochrome c oxidase.

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What it means

PBM is studied for eye, brain, skin and muscle use. Its effects depend heavily on wavelength, dose and the target tissue.

Evidence varies. Some uses have regulatory authorization, while many consumer devices are sold as general wellness products with no disease claims.

Also known as

  • PBM
  • low-level light therapy
  • red light therapy
  • near-infrared light therapy

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Sources

General information, not medical advice. Talk to a clinician about any decision about your health.