What is the best toothpaste that actually whitens teeth?

I tried everything!
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First thing, teeth are NOT NATURALLY BRIGHT WHITE! Natural variations in teeth color go from off white to yellowish white. Bright white is NOT natural. That being said... 'whitening' toothpastes work by being more abrasive than normal toothpaste and some contain varying forms of peroxide. Overuse of whitening toothpastes usually cause tooth sensitivity and sometimes weakening/thinning of the tooth enamel which will actually give your teeth a blue tinge. The whitening toothpastes will not do much to 'whiten' your teeth. They are more effective as a follow up to a whitening treatment. If you want the 'look at me I have really white, not natural' teeth look, go to a dentist and have a professional treatment. Lots of money. Try the at home whitening kits, from what I've seen if you have VERY straight teeth the 'whitening strips' that stick to your teeth work well. If your teeth aren't straight they don't work so well, go for the brush on or fill the tray type gels.
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