Charcoal-based toothpastes are not safe! Charcoal whitens teeth because it is abrasive and wears away the stained enamel on the surface of your teeth. Repeated use will make your teeth sensitive and weak.
Charcoal is also known to contain many carcinogens. Manufacturers claim these products are not as abrasive and the carcinogens have been removed, but the products are so new that they are not well tested.
Until studies come out PROVING they are safe, stay away. Crest Whitening Strips work well, as do whitening treatments in your dental office. If you want whiter teeth, talk to your dentist. Friends don’t let friends brush with abrasive, carcinogenic toothpaste.
For more information, we have linked a great article from the Huffington Post below.