Review (3/5): First-time user, monitoring my progress and reporting...
I have only used this twice so far, but I will update as I use it more**
First off, I was really excited to get this in the mail. I even took "Before" pictures because I wanted to watch the progression to mega white teeth. Also, I love trying any remedy that is weird and natural, garlic for a cold, or vinegar for my mirrors, etc. so I was p\ump\ed o finally find a fluoride-free and bleach-free whitener.
In a nutshell, while this is fun to use (isn't messy if you follow directions), I really haven't seen any whitening results. YET. I used it twice, with 3 days rest in between. Maybe a touch, but nothing notable... like 10-12% whiter. My teeth FEEL great, probably because this is essentially a super fine powder polish, but the whitening really hasn't shown up yet. I have only used it for the recommended brush-time. Make sure to floss after. I will post updates as I use it more.