Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? At the simplest level, different colors of light have different wavelengths.

Let there be light — for your pain, skin, and injuries, that is. The possibilities of red light to treat a variety of health and aesthetic concerns are just emerging thanks to interest from ...

If you’ve stumbled into red light therapy videos on social media, you’ve probably heard that it clears acne, reduces wrinkles, reduces inflammation, and heals joints. You may have also heard that it ...

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One of the most common questions I get asked as a beauty editor is what at-home beauty treatments are actually worth it. My answer? Red light therapy. There’s a reason you’ll find red light devices in ...

The question has been debated ever since Newton. But physicists are still in the dark about whether light is 1) a wave, 2) a particle or 3) a combination of both. Sometimes it behaves like one, ...