I recently purchased some Arm & Hammer Advancewhite Sensitive toothpaste from the 99p shop and it works.
I do have problem with my sensitive teeth so I really do need a good toothpaste but I saw this in the 99p/Poundland shop and thought I would give it a try as the normal price I have seen if for is well over £2, What can I say it really works,
So if you are looking to save a few quid give it a go.
Hope that helps someone.
They normally have a full range of Arm & Hammer toothpaste on display I have never used any of the other types in the range but if the sensitive one is anything to go on I would suggest they could be a very good deal at a £1