As a heads up, I contacted Colgate regarding my issues with the product and sent it back and received some vouchers to make up for it;
This toothpaste is horrible to deal with. I like to switch between two different toothpastes, especially when it comes to the ones with a higher amount of the whitening ingredient in them.
Bad idea; This toothpaste hardened in the tube and I could not get it out because it hadn't just hardened near the opening - it was like the whole middle of the tube had hardened and I had to squeeze and manipulate the tube in order to move that hard core out of the way and pop a pin or other object in there to dislodge it from the opening.
Nice toothpaste otherwise, not sure about the whitening side of it as I gave up on the toothpaste after having to unclog it a couple of times.
It may have been a faulty batch though so I /might/ try it again..
For me this toothpaste didn't deliver what was promised. I think it may have evened out the colour of my teeth somewhat but they are definitely not three shades lighter! I did like the taste and there is no unusual texture however this is not something I would buy again. It doesn't measure up to the high price.