Charcoal Whitening: Level of Abrasiveness and Effects on ...
Apr 30, 2018·Charcoal Whitening Toothpaste Studies. One study chose to test this question was with the use of an acrylic resin maple to demonstrate how abrasive charcoal is compared to toothpaste and water (control.) According to this study, it was found that charcoal is indeed more abrasive than whitening toothpaste.