Instagram, TikTok, Zoom. By some estimates, we spend 50 percent of our lives staring at screens (and if my daily habits are any indication, that number has risen in recent months). While we are texting, our phones are sending a message back to us. Though you may not see it, “blue light is present all around. It’s emitted from our screens, like our computers and cell phones,” says Tiffany J. Libby, a dermatologist in South Kingstown, Rhode Island. We’ve always had exposure to blue light from the sun, “but now one could argue we are substantially increasing our exposure indoors,” says Libby.
And this may not be great news for our skin: Long-term blue-light exposure can generate free radicals and trigger hyperpigmentation, according to some research. And it may lead…
