Kristi Noem, Secretary of the Department of Homeland Security, which oversees the Transportation Security Administration, ...

Looking to save big on your next set of whitestrips? You can save 35% off Crest Whitestrips this Prime Day - but not for long ...

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Thankfully, my experience with Crest 3D Whitestrips was remarkably — and unexpectedly — pleasant. What was the big difference this time around when testing an at-home teeth whitening kit?

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Crest 3D Whitestrips are on sale for 44% off ahead of Amazon Prime Day 2025. The sale includes other Crest products like whitening strips with light, toothpaste and mouthwash.

How We Tested the Crest 3D Whitestrips and Lumineux Teeth Whitening Strips We both tested our respective strips—Crest 3D and Lumineux—every day for a week, as directed.