Do LED masks work? What the science says.

With an eerie, robot-like appearance and an otherworldly glow when worn, those LED masks all over your FYP give off a science-fiction vibe. Fittingly, it was researchers with NASA who discovered the potential for medical light therapy to treat wounds, arthritis, glaucoma and other ailments in the 1990s. By the early 2000s, that LED light therapy was growing in popularity at dermatology offices where patients donned an LED mask or used similar devices to slow aging and treat acne. And now that technology has trickled down to our homes. Brands like Omnilux and Dr. Gross have popularized direct-to-consumer LED masks that are safe to use regularly in the privacy of your own home, available at a range of price points (from under 100 to nearly 500).