Research

How rePretty admits, grades, limits, and publishes research evidence.

Identifies multiple plausible mechanisms and prioritizes protocol specificity, dose estimation, and standardization.

Most included studies reported positive outcomes, but the authors called for additional randomized controlled studies.

Found heterogeneous optical performance and inconsistencies between measured dosimetry and consumer instructions.

No serious adverse events were reported, while dose-limiting erythema or blistering occurred at the highest exposures.

Produced consensus statements for selected clinical applications and adult safety based on the reviewed evidence.

Reported improvements in some strength and soreness-recovery outcomes, while stating that a definite therapeutic effect was not established.

No included study reported benefits for exercise performance or fatigue biomarkers; sleep findings were preliminary and inconsistent with localized PBM literature.

Pooled estimates favored PBM for selected strength, soreness, and muscle-damage outcomes compared with cryotherapy.

Low-to-moderate certainty findings suggested changes in selected oxidative-damage and antioxidant biomarkers, but not all biomarkers.