Basics
What is red light therapy?
Understand the terms, common device formats, and what photobiomodulation means.
Read the guide →Clear explanations and practical comparisons for people researching red and near infrared light at home.
Start with the question closest to what you are trying to understand, then follow the related guides as you need them.
Understand the terms, common device formats, and what photobiomodulation means.
Read the guide →Compare positioning, coverage, movement, and everyday setup.
Compare formats →See what these common wavelength numbers describe and what they leave out.
Learn the difference →The site is organized around distinct questions rather than turning every keyword into another page.