Charcoal-based toothpaste is 'marketing gimmick' that won't whiten your teeth: dental review
Black charcoal-based toothpaste that promises to whiten teeth is a “marketing gimmick”, according to a review in the British Dental Journal.
Black charcoal-based toothpaste that promises to whiten teeth is a “marketing gimmick”, according to a review in the British Dental Journal.