“You’ll never catch me using charcoal toothpaste,” DiFoggio said. “While it might make your teeth look whiter at first, charcoal is abrasive and can wear down your enamel over time ― revealing the yellowish dentin underneath. It’s a fast track to sensitivity and discoloration.”
She added that even non-charcoal whitening toothpastes can cause sensitivity if overused, so she uses them…
