I was excited to be given this toothpaste to try. The very hot red packaging gives it a very attractive appearance to start with. The taste was unexpected, and kind of menthol-ly. After using it for a while I can see my teeth look clean and maybe a little whiter. I probably couldn't say three shades whiter at this stage though. It is quite a good toothpaste but I couldn't recommend it as a great whitener.
It is relatively inexpensive for how well it serves as a toothpaste.
Have used this for a year or so with varied results. I found it made a big difference in the first few weeks and was pleased with the results however stopped after this but did maintain reasonably white teeth. I like the taste and find it makes my teeth feel cleaner than other toothpastes. Overall like this product but only buy it on sale as it is quite expensive