Skip Zoom Unless You Have Stains That At-home Treatments Have Not Fixed - New York, NY
Apparently, there are different types of machines:...
Apparently, there are different types of machines: Zoom! and Zoom! 2. The second supposedly works better. I bought a $100 deal for Zoom whitening and am pretty sure it was the older version. I regret the purchase because the improvement was very difficult to notice. I already have white teeth. Doing Zoom made little to no difference, and I get brighter results with Crest Whitening Strips.
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