I think I’ve been using this toothpaste for enough time already to experience it’s maximum benefits.
The conclusion: It didn’t whiten my teeth at all. I like the Colgate whitening better. This one didn’t even change my teeth enough to justify a before&after photo comparison.
I think the whitening claims are from it’s fancy sparkling glitter -_____- I’ll admit IMMEDIATELY after brushing with this toothpaste, my teeth were SPARKLY!~~ but the brightening effect does not last 😦
So if you’re trying to make the decision between the Colgate and the Crest, I would go for the COLGATE.