Systematic review · 2026

Chronic Pain: What 14 PBM Trials Found

A 2026 systematic review of photobiomodulation (PBM) across 14 randomized trials found that most included studies reported pain reductions, but varied conditions, devices, parameters, and limited follow-up prevented broad treatment recommendations. This is category-level evidence, not proof for the rePretty Mat.

Protocol

What was reviewed or tested

PBM compared with sham, placebo, or conventional care across heterogeneous chronic-pain protocols.

Selected outcomes

What the record reports

  • Most included trials reported pain reductions, but technical heterogeneity and limited follow-up prevented broad standardized recommendations.

Required reading

Limitations

  • Conditions, technical parameters, and follow-up periods varied substantially.
  • A systematic review of clinical protocols cannot diagnose a user or prove the rePretty Mat treats pain.

Original source

Citation

Photobiomodulation in Chronic Pain: A Systematic Review of Randomized Clinical Trials. 2026.

https://pubmed.ncbi.nlm.nih.gov/41710353/

Practical next steps

Compare the device, timing, and routine separately.

The next guides cover how to compare home devices, choose a starting schedule, and use a mat as part of an everyday routine.