Patient education
Red Light Therapy Evidence: What the Evidence Shows
Written for someone trying to establish what is actually known. What red light is established for and where the evidence stops, why the energy delivered matters more than the device, the collagen claim, the hair trials, how clinic and home devices differ, why the category is sold for almost everything, when the treatment is harmless but pointless, and how to read the next study you meet.
All guides
8 guides
- What Red Light Therapy Is Established ForThe core
- Why Light Dose Matters More Than the DeviceThe dose
- Red Light Therapy and the Collagen ClaimClaims audit
- Red Light for Hair Loss: What the Trials ShowThe hair claim
- How Clinic and Home Red Light Devices DifferDevices
- Why Red Light Is Marketed for Almost EverythingThe market
- When Red Light Therapy Is Harmless but PointlessOpportunity cost
- How to Read a Red Light Therapy StudyReading studies
What this review is, and what it deliberately is not
It grades red light claims against published evidence and regulatory status, and names the claims that nothing carries. It does not recommend a device, does not offer an assessment, and does not invite anyone toward treatment.