LED light therapy masks have exploded in popularity thanks to celebrities sharing snaps of themselves wearing the futuristic-looking devices at home. Promising everything from smoother skin to fewer wrinkles and a brighter glow, the gadgets use red and near-infrared light to stimulate collagen and help improve the appearance of skin over time. Unsurprisingly, a growing number of stars have added them to their skincare routines – even if the results do make them look a little like something out