Teeth Whitening Product ?

Hi Can anyone tell me in your opinion what the best product for whitening teeth is ? Thanks!
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Tooth whitening can cost anything from $400 for Laser whitening and upwards for a professional laser whitening treatment, to a do it yourself kit for $29.99 off the Internet. However, the active ingredients that turn the tooth white are almost always the same - a carbamide peroxide or hydrogen peroxide solution. Your dentist will likely use a 22-45% carbamide peroxide or hydrogen peroxide solution which is a relatively strong solution while in the chair, and will give you a 16-22% solution for use at home. However, this can vary greatly according to your sensitivity and the actual whitening agent used. The strips work OK if you have perfectly straight teeth. If you don't you will get ugly lines where the strips don't quite line up. Cheapest is to use a bleaching kit with trays for use at home with a good amount of the active ingredients.
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