The promise: Using the patented Ampoule Technology, this systemclaims you will get whiter teeth in seven days by inserting the small vial into the sleeve, popping the inner tube and applying the solution directly onto your teeth.
What WD had to say: Our tester had used whitening products in the past, but was looking for something to maintain her already white teeth. Unfortunately, she was disappointed by the application process of this product. "I couldn't even figure out how to use it. By the time I finally squeezed out all the gel, I was frustrated and it got everywhere." Although the gel seemed to brighten her teeth after just three days and produced no tooth sensitivity, our tester won't use it again due to the difficulty of use.
Listerine Whitening Pre-Brush Rinse
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Overall Score: 2.6 out of 5
The promise: With four times the amount of whitening power of toothpaste, this rinse claims to fight stains, plaque buildup and bad breath.
What WD had to say: The mouthwash seemed simple and harmless enough to our tester, whose teeth were "fairly yellow and discolored, "but as soon as sheput it in her mouth, her outlook changed. "The main whitening ingredient is hydrogen peroxide, and it tasted that way. The first time I tried it, I hated it, and it was a struggle to keep rinsing for a full minute." It was simple to use, however, and only took a minute twice a day before brushing. The product doesn't indicate how long it takes to see results, but in the two weeks she tested it, she didn't notice any change. $5.49; Walgreens.com. Photo courtesy of ListerineWhitening.com.
REMBRANDT Form-Fit Whitening Strips
Overall Score: 2.5out of 5
The promise: These strips claim to visibly whiten teeth in five days.
What WD had to say: With only a five- to seven-day commitment, this product seemed like the easiest choice for our tester, whose teeth were "white enough and looked OK, but could be a shade or two whiter." Although she described the application process as "very easy—you just peel them open, rinse your mouth with water and put them in, " the results were disappointing. After seven days, our tester saw little improvement.