Charcoal-based toothpaste 'will not whiten teeth and may cause decay'
Nearly all of the toothpastes (96 per cent) also claimed to have teeth whitening properties, but the review states that charcoal-based pastes or powders …
Nearly all of the toothpastes (96 per cent) also claimed to have teeth whitening properties, but the review states that charcoal-based pastes or powders …