For a few weeks right now I’m using this warpaint natural teeth whitener and I can really say that I already see the difference. Of course to whitener my teeth in a natural way will take much more time than two weeks, but I saw that some spots which I had from drinking coffee and black tea at my bottom teeth are gone. So I definitely will use this natural teeth whitener. I know that this is quite popular teeth whitener at the moment. This is not sponsored post it is just my opinion after trying warpaint.