Gleaming, white teeth are what separate the beautiful people from the peasants. You'll notice -- the first physical transformation TV producers give to new starlets is a $500+ teeth whitening treatment. But there's even more to our obsession with pearly canines than the desire for celebrity good looks. According to a study from researchers at the British universities of Leeds and Central Lancashire, teeth are "the human equivalent of a peacock's tail." In other words, the prettier the pearly-whites, the more likely to attract a mate. Needless to say, we'd all love to have a top-tier set of teeth. But we don't want to spend a big chunk of our beauty budget on some unpleasant, bank-breaking whitening system that doesn't produce results. To help you navigate the ever-increasing number of teeth whiteners out there, we had Totalbeauty.com readers test a range of products. Check out their reviews to find out which treatments will whiten and brighten your grin, and which will give you nothing but trouble.
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