Top critical review
4 people found this helpful
on January 30, 2018
I have been using this product for three weeks and the only change is that my teeth and gums have become VERY sensitive to cold and anything acidic. My teeth are NOT whiter. As a matter of fact, rinsing is not enough after brushing with this product because my teeth end up with a greenish tint. I have to brush again with regular toothpaste to remove the greenish tint. Additionally, you have to be very, very careful because if you accidentally get the black powder on anything, it is very difficult to get out. There is even a warning about it with the product. I doubt I will keep using this as I am wondering if it is damaging my gums.
UPDATE: The vendor read my comments, was apparently quite concerned about my experience, contacted me and we were able to reach a satisfactory resolution. Now THAT is good customer service!