Review (5/5): Great taste like mouthwash & toothpaste.
I love this product. Its almost like using a mouthwash while brushing your teeth. I'm trying to spare using it because it is expensive for the size of the container. Your mouth feels like you just came from the Dentist after using Smilebox. I can't really attest to the whitening power as I interchange with regular toothpaste but it cleans very well!
Edit: I have especially sensitive teeth and have realized over time there is no sensitivity at all. Your teeth will become whiter as you use it more frequently. I'm going to subscribe to this as I don't use mouthwash, but this is like a 2 in 1 deal. Fresh, very clean with whitening all in one. Very refreshing, feels and looks like you just came from the Dentist. My hygienist noticed a big difference at my last cleaning appointment! I say give it more than 2 weeks if you're a coffee or tea drinker as I am. It will work with a bit of patience.