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For years, I wrote off LED and red light therapy face masks as just another gimmick in the ever-growing beauty tech world—and then I actually read the science. Oops, my bad.
If you’re not familiar with the history of LED (light-emitting diodes), allow me to (very briefly) break it down. The benefits of this therapy have been studied for decades, thanks to NASA. Back in the 1980s, NASA conducted experiments to see how light affects plant growth in space. They discovered that certain wavelengths, particularly red light, helped plants thrive. This led to the creation of LEDs that could emit specific wavelengths for different uses. Fast forward to the ‘90s, and scientists began exploring how these wavelengths could affect wound healing. Spoiler alert: they were impressed.
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