Red light therapy and hair loss research

Hair loss is one of the areas included in recent clinical PBM guidance. Evidence for an indication does not establish that every general purpose panel has been tested for that use.

What recent clinical guidance says

A 2025 evidence based consensus listed androgenetic alopecia among the applications where the expert panel considered PBM an effective treatment option.

Device design matters

Hair studies may use equipment designed to deliver light to the scalp at defined wavelengths and doses. A large body panel has a different geometry and may use a different protocol.

Diagnosis matters too

Hair loss has multiple causes. New, unexplained, or significant hair loss deserves an appropriate evaluation rather than an assumption about the cause.