1 | Crest 3D White Multi-Care Whitening Rinse
"It's like Whitestrips in a bottle," claimed a devotee. Others noted the fresh, alcohol-free formula, which didn't "sting, burn, or taste like sulfuric acid"; $5.89 for 16 ounces.
2 | Listerene Whitening Plus Restoring Post-Brush Flouride Rinse
Offering whitening, enamel-restoring, and germ-fighting benefits, this rinse produced more pristine whites within two weeks; $6.49 for 16 ounces.
3 | CVS Pre-Brush Mouth Rinse
One of our dental detectives gave major props to the frothy foaming action, which "told me it was doing its job." Yellowish teeth started to brighten up—albeit subtly—by the end of the first week; $6.99 for 32 ounces.
*Whitening toothpaste won't alter the natural color of your teeth, but it will help remove surface stains.