Review (5/5): It works!
This whitening powder works. I could see a change in the color of my teeth after using it the first time. The change is even more evident after a couple days of use. The powder is very fine, so you have to be sure to get it all out after using or there will be a black outline on your teeth. The flavor is okay, although I prefer the mint flavors, vanilla isn't bad at all. Overall, I enjoy using this charcoal whitening product.