Evidence Grades: 21 Conditions Rated
Every condition graded A through D based on the strength of clinical evidence for red light therapy effectiveness.
Red Light Therapy Evidence Map
21 conditions | Graded A-D by clinical evidence strength
Strong Evidence
(6 conditions)Moderate Evidence
(9 conditions)Joint Pain & Arthritis
BMuscle Recovery
BBack Pain
BNeuropathy
BPsoriasis
BDepression & Mood
BKnee Pain
BNeck Pain
BPlantar Fasciitis
BLimited Evidence
(6 conditions)By Category
How We Grade Evidence
Grade A: Multiple RCTs with consistent positive results. Grade B: At least one RCT or multiple controlled studies. Grade C: Observational studies or case series. Grade D: Preclinical data, case reports, or expert opinion only.
redlightos.com/infographics/evidence-grades
Related Resources
All Conditions & Benefits
Detailed pages for each condition with studies, protocols, and FAQs.
Effect Matrix
See how wavelength, dose, and frequency interact across conditions.
Statistics Dashboard
Aggregate data across all studies and conditions in one view.
Dose Guide Infographic
Understand optimal dosing with the biphasic response curve.
Medical Disclaimer: This content is for informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Red light therapy devices are wellness devices and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.