Rembrandt Deeply White Tooth-brightening peroxide helps the liquid penetrate the enamel, so it tackles discoloration both on and beneath the surface. “After a week of use, my coffee stains faded,” said a tester. Leaves breath minty fresh, too.
Scope Outlast Containing ingredients like cetylpyridinium chloride, an antiseptic that destroys bad-breath–causing bacteria, this formula leaves you with that tingly feeling up to five times longer than brushing alone does.
To buy: $5 at drugstores.
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Listerine Ultraclean Eucalyptol, methyl salicylate, and the antiseptic thymol kill plaque and gingivitis—two causes of bad breath—leaving a tingle that “makes you smack your lips and say, ‘Ahhh,’ ” according to one tester.
To buy: $4 at drugstores.
4 of 6Danny Kim
Crest Pro-Health Multi-Protection Covers all the bases: contains a powerful antiseptic, protects against plaque, fights germs, sweetens breath, and helps prevent gingivitis. Consider it a multivitamin for your mouth.
To buy: $6 at drugstores.
5 of 6Danny Kim
Marvis Mouthwash Concentrate Strong Mint Prettily packaged but potent, this non–medicinal-tasting potion revitalizes with a blend of peppermint and aromatic herbs. The flavor intensifies the longer you gargle.
Jāsön Healthy Mouth Cinnamon Clove A cooling mix of clove and cinnamon oils helps to halt halitosis. Grapefruit-seed extract aids in protecting gums and teeth from tartar buildup. Testers loved that it produced no “biting after-burn.”