Does charcoal look like it will whiten your teeth? If you think not, then listen to your instincts (and the experts).

  Doing “The Opposite” of every rational instinct elicited positive results for the Seinfeld character George Costanza in 1994, but life is hardly an NBC sitcom (even though it might seem so of late). So, when a DIY teeth whitening trend involves the use of a “charcoal-derived black mixture,” perhaps stick to logical advice from dental industry experts instead of […]