I've been using this product for a few months now. I brush morning & night with it.
I find that it doesn't taste very nice at all, and it's quite a harder tooth paste, it's not as runny as the others. As for the whitening I haven't noticed anything over dramatic with it although I do get compliments on how white my teeth are, but I use white strips quite often.
For the price of it $8-$9 I was expecting a bit better, I don't think I will be repurchasing anytime soon.
After seeing one of the big time beauty gurus of youtube say she uses this (shes got gorgeous white teeth) I thought i would give it a go, but after going through an entire tube using it twice a day I didnt notice a different at all?. I do however think based on the ingredients if it were used in conjunction with another whitening product it would help boost the whitening