Curious about light? Start with a good watch, then go straight to the research.
Red and near-infrared light are being studied for specific uses. Results depend on the device, wavelength, dose and treatment schedule. The resources below are a starting point for learning, not a promise of results from our products.
These videos have substantial recorded audiences. View figures below are third-party indexed snapshots checked on 21 October 2026, rather than live YouTube counts. Popularity is not a measure of scientific quality.
Huberman Lab · 2022 · 750,000+ indexed views
Andrew Huberman’s longer introduction to sunlight, blue light, red light and light biology. Useful background for understanding why different wavelengths are discussed differently.
Watch on YouTube ↗ · Creator’s notes ↗ · View-count source ↗
Jeffrey Peng MD · 2024 · 170,000+ indexed views
A clinician’s introduction to the evidence and the distinction between professional low-level lasers and home light devices.
The speakers and researchers are independent of Beyond Dawn. Linking does not imply endorsement of our store. Videos may contain advertising, affiliate links or claims that go beyond the evidence. Eye-treatment research uses specific devices: do not copy an eye-exposure protocol with a general-purpose panel.
Skin · Randomised controlled trial · 2007
Lee and colleagues studied 76 people using 633 nm, 830 nm, combined light or a sham treatment. The authors reported improvements in wrinkle and elasticity measures with the tested protocols.
Keep in mind: A small, short treatment study using particular equipment. It does not establish the same result for another panel, and 633 nm is not identical to 630 nm.
Exercise · Randomised controlled trial · 2016
Vanin and colleagues tested pre-exercise 810 nm laser doses in 28 soccer athletes. Some doses improved strength or biochemical recovery measures; soreness did not improve, and the 30 J dose showed no measured benefit.
Keep in mind: This was a laser study in athletes, not a trial of a home LED panel. Dose matters, and more light does not automatically mean a better result.
Hair · Randomised controlled trial · 2013
Lanzafame and colleagues tested a 655 nm laser-and-LED helmet against a sham device over 16 weeks. Forty-one men completed the trial, and the active group showed improved hair counts.
Keep in mind: The tested helmet used lasers and LEDs. This does not establish hair regrowth from the Ritual Cap, which has a different light configuration.
These studies do not demonstrate that Ritual devices treat disease or extend lifespan. Follow the supplied manual and ask your treating clinician about suitability if you have a medical condition, take light-sensitising medicines or are receiving treatment.
Resources checked: 21 October 2026. We link to the original abstracts so you can read beyond the headline.