Whitening effect

I have used Colgate max white ultimate catalyst for more than a month now and it is definitely having effect on my teeth. I have sensitive enamel and can't use toothpaste with whiting parts inside but this one is fine and I don't feel sensitivity while brushing. It is giving me fresh breath for long time as well which is also one of the most important things for me when choosing the right toothpaste. I was previously with Colgate maxfresh aquaclean and I would say both are excellent but would recommend max white ultimate to people with sensitive teeth.