(But Crest, if you're reading this & want to compensate me for my opinion, I'd happily join your payroll.)
You guys - this is the best whitening toothpaste ever. I'm serious.
I do this weird, conditioned behavior when I'm drinking coffee. I immediately put the liquid behind my bottom teeth when it goes into my mouth (in an effort to avoid staining my front teeth). Well, because of that, if I open my mouth and look at the back of my bottom teeth in the mirror, I have coffee stains. A lot. And they don't go away with normal brushing. I've tried to pay extra attention to that area, but they just don't budge.
But! I'm serious, you guys, they went away in less than a week of using Crest 3D White. Less than a week. Months of stains. Gone - POOF!
The toothpaste isn't abrasive and it doesn't cause any sensitivity In the past I've had: 1) weird gum reactions to toothpastes and 2) crazy sensitivity to whitening products. But nothing with this one.
So yeah. Bottom line: use this stuff. It's awesome.