What makes our ash so smart? Smart Ash is a non-abrasive tooth whitening powder that is actually good for your teeth! Most tooth whitening products contain harmful chemicals that destroy your enamel for temporary results. Smart Ash is a different breed of whitener. The all natural ingredients safely lift stains while simultaneously strengthening, remineralizing, and reversing sensitivity. It's safe to use every day as a toothpaste alternative and the food grade ingredients are kid-friendly! We recommend you supervise little ones, the powder can get messy.