If you haven’t already spent hundreds of hours of your life watching an oddly fascinating YouTube video of activated charcoal teeth whitening, we’ll fill you in. They’re using activated charcoal teeth whitening, a reheated, oxidized version of the stuff you buy for summer cookouts, like a natural tooth whitener. The strangest part? It works. Activated Charcoal Tablets Activated charcoal’s natural adhesive qualities let it bind with surface-staining culprits like coffee, tea, wine, and plaque, and take them off your teeth for good when you spit it out. However, its whitening power stops at stains. If your teeth are naturally darker...