Aquafresh Iso-Active Whitening Fresh Impact This gel’s plentiful bubbles froth up when they hit your tongue and penetrate deep between teeth, leaving behind a well-scrubbed feel.
To buy: $6 at drugstores.
2 of 8Tom Schierlitz
Arm & Hammer Whitening Booster Plus With Enamel Strengthening If you already have a toothpaste that you love, top it with this liquid-calcium concentrate. It lightens stains and can help fill in tiny cracks.
To buy: $11 at drugstores.
3 of 8Tom Schierlitz
Colgate Total Enamel Strength The gel-paste hybrid keeps your mouth feeling clean and fights germs for 12 hours. Plus, it protects enamel from acids found in foods and drinks.
To buy: $3.50 at drugstores.
4 of 8Tom Schierlitz
Pro’s Healing Pick
Tom’s of Maine Clean & Gentle Care “It soothes bitten cheeks, sore gums, and even an achy throat with licorice root,” says New York City periodontist Greg Diamond.
Luster White 7 Toothpaste With—you guessed it—seven polishing agents, including bamboo, silica, and peroxide, this stain blaster can brighten teeth in one week. Testers loved its mild, sweet flavor, too.