As the Strategist’s dental-hygiene expert, I’m constantly trying the latest oral-health products, from toothpaste ... for in whitening products. “If it doesn’t have that ingredient ...

“Hydrogen peroxide and carbamide peroxide are typically the two main whitening ingredients found in toothpaste,” Rich Lipari of Lipari and Mangiameli Dentistry in Chappaqua, New York, tells ...