Everyone loves a bright, white smile, and with the rise of social media and at-home beauty trends, DIY teeth whitening has become increasingly popular. From over-the-counter kits to homemade remedies using ingredients like baking soda, lemon juice, or activated charcoal, people are trying just about anything to get a whiter smile. But while a whiter smile is a confidence booster, do-it-yourself teeth whitening isn’t always safe, and in some cases, it can do more harm than good. Here’s what you should know about the risks before you try to whiten your teeth at home.