Before I started using pronamel, I was using crest's 3D white toothpaste. Ironically enough, that's what caused me to have to start using pronamel. I didn't have any problems with the sensitivity of my teeth before I got that, so I turned to this. I still wanted to get my teeth white, so I started using this. Needless to say, my teeth not only were getting whiter, but I also was gaining back the lack of sensitivity that I had before! Even if you don't have sensitive teeth, I highly suggest using this toothpaste along with the toothbrushes they now have available. Make this your extra protection rather than your requirement.