Smearing charcoal on your teeth doesn't seem like the obvious way to achieve a winning smile, but not everything that seems to make sense actually makes sense, and the NUOVAWHITE Charcoal Teeth-Whitening System demonstrates that. This charcoal-based solution is clinically proven to restore and strengthen tooth enamel, and can give you the sparkling grin of a daytime soap star after just one treatment. That doesn't mean you should just start rubbing rocks that you find on the road into your gums. This charcoal solution is FDA-compliant and specifically designed for dental use. Each treatment provides the equivalent of around a dozen trips to the dentist. Normally a two-pack of the NUOVAWHITE Charcoal Teeth-Whitening system would run you $259, but today you can knock 89 percent off that price and pick it up for just $27.99.