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12-Hour Breath Freshener

THE CLAIM: Most mouthwashes contain alcohol to mask bad breath for about an hour. This one relies on zinc ions (activated when you mix the two liquids together) to target the germs that cause halitosis.

THE EXPERT SAYS: "The zinc penetrates plaque, where bacteria live, and prevents the bacteria from breaking down amino acids, which is what produces the foul smell," explains cosmetic chemist Ni'kita Wilson.

OUR VERDICT: Morning breath be damned! We rinsed before hitting the sheets and felt fresh when our alarm clock buzzed eight hours later. But we missed the cool mintiness of our usual mouthwash and didn't love the chalky aftertaste.

TRY IT YOURSELF: Smart Mouth mouthwash, $11; at (CREDIT: Time Inc. Digital Studio)
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The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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