Although I am pretty careful about brushing my teeth twice daily, drinking water, using mouthwash etc, I find that my teeth do end up with a slightly yellowish tinge to them so I purchased this to try and remedy that.
I found it gave a decent clean, but I didn't really notice too much difference in the colour of my teeth. My teeth can be quite sensitive and sometimes products such as these will irritate them, but i didn't have any problems in that regard.
All in all, I probably won't be repurchasing.
I am on to the second tube of this product, and whilst I did I did notice a slight improvement with the first tube, that's where it stopped. Nothing has changed for quite a while now, I will not be buying another after this. It does taste nice, but I would prefer it to give me the white that was promised on the advertising.