I get asked almost daily how I have such white teeth. I did have them whitened back in 2008 but I do still have a regime to keep them white. I made a youtube video about it a while back
I usually use whichever toothpaste I grab, doesn't matter to me if it's the Beverly Hills gold, silver or breath freshening tube. I get through one every fortnight as Matt uses it too and always get bulk when they are on three for two, but I did get sent this brand new one to test out and these are my thoughts:
The new Beverly Hills formula toothpaste is called Dentist's Choice, gum and whitening expert. The tube is slightly smaller (75ml) than the regular tubes. The purple packaging is nice, but the gold and silver packaging looks more eye catching.
Overall this toothpaste is great, but so are all of the ones in the range. I can't say I would actively buy this specifically over any of the others in the range. But I would never buy a toothpaste that wasn't from the Beverly Hills Formula range, as I find them poor in comparison.