Works OK, not a huge difference.

I personally did not find a huge difference in the whiteness of my teeth when using this toothpaste. Would like to see more whitening power. Overall, it cleaned my teeth well.

Does improve the whiteness of your teeth!

I always buy this toothpaste more than any other, but only when it’s on offer in Morrisons or any local supermarket. I must say this is my preferred Colgate toothpaste and it is sensitive on my teeth and gums. I have noticed that my teeth are slightly whiter since using it, and so have my colleagues at work 😎. But, sadly unlike the emoji they do not need to put there sunglasses on when I walk in the room. However if your teeth are looking dull, this toothpaste works and does not take enamel off your teeth.

Colgate optic white platinum would be on my iffy list. It is suppose to whiten your teeth 4 shades lighter,but, I don't feel it did. Granted, I smoke and was hoping to whiten my teeth, but brushing twice a day , I didn't find it as effective as it states it does.
It does have hydrogen peroxide as an ingredient, which should add whiteness to your teeth, but I would rather try another product to see if it would do the trick.