Tool / wearable

Red Light Panels

Last updated Sat May 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time)

What they are

Light-therapy panels deliver high-intensity red and near-infrared light to the skin. Cellular target: cytochrome c oxidase in mitochondria (proposed mechanism). Dose response is biphasic ("Arndt-Schulz curve") — both under- and over-dosing reduces benefit.

Where evidence exists

Skin / collagen / wound healing: reasonable evidence.
Joint and muscle recovery: small effect sizes in meta-analyses.
Hair regrowth in androgenic alopecia: modest evidence.
Dry AMD progression: LIGHTSITE clinical-trial signals.
Cognitive enhancement: weak, preliminary.

What to look for

Irradiance (mW/cm²) at stated distance — many panels understate or overstate.
Independent third-party measurements of irradiance.
No EMF claims without evidence.
Pulsed vs continuous wave — little evidence one is superior.

Practical use

10–20 minute sessions, ~15–45 cm from skin.
Bare skin (clothing absorbs most photons).
Eye protection in high near-infrared output.
Consistency over months matters more than session intensity.

Caveats

The home photobiomodulation market has wide quality variation. Many products understate or overstate dose. Treat results as personal n=1 data, not predictable medical-grade therapy.