Dentists Use Hydrogen Peroxide to Whiten Teeth
It penetrates the teeth to change their color from beneath the surface. One hydrogen peroxide-based product many dentists prefer is Opalescence Boost. The main ingredient in Opalescence Boost is a gel that contains 40% hydrogen peroxide.
Teeth whitening is considered safe. The products have been around for decades, and millions of people use them — including plenty of dentists, notes Dr. Clemons. “And we haven't seen an increase in problems like cavity risk or tooth fractures after whitening,” she adds.