Review (5/5): Your mouth feels incredibly clean -- way more than any toothpaste.
After about two weeks of consistent, daily use, I noticed my teeth whitening. But the thing I have been most struck by is how clean my mouth feels after use. It's really kind of weird. It's like it's squeaky clean. I actually wonder if the carbon doesn't bind to gunk and pull it out. This doesn't mask with foam and flavors, it really really cleans.