Red light therapy (or RLT if you like acronyms) uses low-level wavelengths of red and near-infrared light to penetrate your skin. This light doesn’t burn or tan—no UV rays here—but instead works deep in your cells, kind of like a cellular pep talk. Originally, NASA started using this tech to help astronauts heal wounds faster in space. (Because, of course they did.) Fast forward a few... https://businessoutstanders.com/editors-choice/red-light-therapy-spa-trend-2025