Stop guessing your red light therapy dose.
A 30-chapter, citation-backed protocol library for the device you already own. Wavelengths, dosing, session length, contraindications — and twelve condition-specific protocols compiled from clinical trials.
Most people use red light therapy wrong.
Not because they bought the wrong device. Because nobody told them how far to sit, how long to sit there, or which wavelength does what.
The instruction card that came with your panel says "15 minutes daily." It doesn't say at what distance. It doesn't say which wavelength reaches your nerves and which only reaches your skin. It doesn't say what dose the trials that actually showed results for your condition used.
That gap is what this library closes.
What's inside
30 chapters · ~85,000 words · A4 PDF
- 1. How red light therapy works
- 2. Wavelengths: red vs near-infrared
- 3. Irradiance and dose (J/cm²)
- 4. Penetration depth
- 5. LED vs laser
- 6. Session length
- 7. Treatment frequency
- 8. Distance from device
- 9. Eye protection
- 10. Contraindications
- 11. Medications and red light therapy
- 12. Side effects and overuse
- 13. Pregnancy, children, and dark skin
- 14. Combining with other treatments
- 15. Neuropathy and nerve pain
- 16. Shoulder pain
- 17. Knee pain
- 18. Back pain
- 19. Hair growth
- 20. Wrinkles and skin aging
- 21. Acne
- 22. Under-eye area
- 23. Wound healing
- 24. Sleep
- 25. Inflammation
- 26. Nail fungus
- 27. Wavelength chart
- 28. Frequencies and pulsed light
- 29. Glossary and defined terms
- 30. About the author and methodology
Pick a tier
- ✓ Full 30-chapter PDF
- ✓ Quick-reference dosing tables
- ✓ Glossary and wavelength chart
- ✓ Free version updates forever
- ✓ Everything in the Library
- ✓ 5-email "first 14 days" course (Day 0, 2, 5, 9, 14)
- ✓ Starter protocol walkthrough
- ✓ Mid-week troubleshooting email
- ✓ Stacking guide (skincare, supplements, sleep)
How this library was compiled
Every protocol is built from peer-reviewed clinical literature, manufacturer specifications where independently verifiable, and published third-party test data collated by the editorial team at RedLightTherapy.expert. Where a study is cited, the lead author, year, and journal are named so you can locate the source. Where a manufacturer claim is reproduced, it is identified as a claim, not a finding.
We do not accept payment to alter rankings or protocols. The site earns affiliate commission on some device recommendations; this library is paid because it is a substantial, standalone reference work — not a lead magnet for affiliate sales.
See the methodology page on redlighttherapy.expert/research for the full editorial standard.
Frequently asked
What's actually in the library? +
A 30-chapter, ~85,000-word PDF compiled from RedLightTherapy.expert's evidence reviews. Five foundation chapters on the science, nine safety and dosing chapters, twelve condition-specific protocols (neuropathy, shoulder, knee, back, hair, wrinkles, acne, under-eye, wound healing, sleep, inflammation, nail fungus), plus a wavelength chart, glossary, and methodology.
Is this medical advice? +
No. The protocols describe dosing windows that have shown benefit in published clinical trials. They are not personalised prescriptions. Chapter 10 (Contraindications) and Chapter 11 (Medications) flag who should not use red light therapy, and we always recommend consulting a clinician for undiagnosed symptoms or while taking photosensitising drugs.
Will it work with my existing device? +
Yes — the library is device-agnostic. Every protocol specifies wavelength, irradiance, distance, and dose targets so you can apply them to any LED panel, mask, wrap, or handheld you already own. Chapter 3 (Irradiance and Dose) shows exactly how to convert your device's spec sheet into a session length.
How is this different from the free articles on the site? +
The free articles each cover one topic in isolation. The library compiles every protocol into a single reference, adds quick-reference dosing tables, a glossary, and the £29 tier adds a structured 14-day onboarding email course so you don't have to navigate dozens of articles to build a treatment plan.
Refund policy? +
Because this is a digital download, all sales are final once the PDF has been downloaded. If the link fails or the file is unreadable, email [email protected] and we will replace it.
Do I get updates? +
Yes. The library is versioned and updated as new evidence emerges. Every buyer receives every future version free, delivered to the same email address.
Is the £29 email course required? +
No. The £19 PDF is complete on its own. The £29 tier adds a 5-email "first 14 days" course (Day 0, 2, 5, 9, 14) that walks you through your first sessions in real time. Pick £29 if you want hand-holding through the first two weeks; pick £19 if you prefer to self-pace from the PDF.
Use the device you already own — properly.
Instant download. Lifetime updates. £19 once.
Get the Library — £19