2 days, a difference. After that...not so much
I guess it does its purpose. The first 2 days, I did see a difference. After that, not so much. The one upside to this product...every time you use this, your teeth feel as if you've just come from the dentists/hygienists office. It's a little messy, hard to maneuver in the canister without it getting all over the place, but not so hard you can't use it. What ever you do, make sure you rinse out your sink when done.
Rating: 3 stars