LED Face Mask Many people today use LED masks to get better skin. These masks look like something from a movie and shine red or blue light on your face. Red light is usually for wrinkles, and blue light is for acne. You can use them at home for about ten minutes a day. Some people say their skin looks much better after using the mask. But scientists say we need to be careful. The masks you buy online are not as strong as the lights in a doctor's office. Also, there are not many big studies to prove they work perfectly. Some experts think the reason why people feel better is that they feel relaxed while wearing the mask. If you have a skin problem, it is always a good idea to ask a doctor before buying such expensive tools. Difficult words ✍️ ✅ wrinkle /ˈrɪŋkl/ – a line on your skin, usually when you get older. ✅ acne /ˈækni/ – small red spots on a person's face, common among teenagers and young adults. ✅ prove /pruːv/ – to show that something is true. ✅ LED /ˌel iː ˈdiː/ – a type of li