CHARCOAL TOOTH POLISHPitch black powder to whiten your teeth? Yes! Activated charcoal is the secret ingredient. It's an oxidized version of charcoal and can be used to effectively whiten teeth. It removes external stains from your teeth without the toxic chemical ingredients used in commercial tooth whitening. This tooth whitening promotes good oral health and can change the pH in the mouth, helping to reduce things that cause cavities, gum disease and bad breath.