Key whitening ingredients include hydrogen peroxide and carbamide peroxide, as well as more abrasive whitening agents such as silica, which works to rub stains off the surface of your teeth. And while you won't find a Relative Dentin Abrasivity (RDA) score for your toothpaste on the label, this number gauges the toothpaste's potential erosive effects on your teeth. Sodium fluoride is a key ingredient in any toothpaste for preventing cavities and strengthening teeth. When shopping for whitening toothpaste, it's important to check the ingredients. “Most toothpastes, whether they're labeled whitening or not, have some kind of a mild abrasive in them to safely remove surface stains from the teeth,” says Edmond Hewlett, DDS, professor at the UCLA School of Dentistry and consumer advisor for the American Dental Association (ADA). While you brush away plaque and debris and prevent cavities, the addition of whitening ingredients like hydrogen peroxide can also remove stains caused by things like drinking coffee, tea, red wine, or even smoking. Whitening toothpaste is a simple way of getting even more out of the twice-daily habit of brushing your teeth.
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