Having sensitive teeth I found it does help.
It’s a bit costly though. It comes in a 75ml tube which is about the same size as most toothpaste. It’s a little bit more expensive than most toothpaste but it gets the job done so I don’t mind.
I used it twice a day like the instructions said because I was desperate to see good results. I can eat and drink cold food now and have no problems with sensitivity. I’m not sure about whether the whitening works or not, my teeth still seem the same colour.
The taste takes a while to get used to because it’s not the normal minty, but instead is more bitter, I feel that it didn’t leave a nice taste in my mouth but all in all, I do recommend this if you have tooth sensitivity.