REAL teeth whitening tooth paste?

i see a ton of toothpastes and that say stuff like "2x whitening formula" or "whiter teeth" but nothing ever works and i KNOW i brush my teeth really really well. but i cant seem to find a toothpaste that really works for whitening...any help???? better brands?? idk im clueless
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I'm using teeth whitening toothpaste plus a product which I found recently and they work like a charm for me. I'm using crest teeth whitening toothpaste. Also if you're interested in the product which helped me a lot, you can have a look at the blog below which helped me a lot http://myteethwhiteningstory.wordpress.c… Hope this helps
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