What do y'all think? Is 35% strong enough to whiten teeth? and safe too? Like the one in the teeth whitening pen applicators.. What about 44% Carbamide Peroxide? I've heard strips and over the counter products use very low carbamide peroxide concentrate. Thanks! http://hollywoodwhitepen.com
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It is what most dental offices are using to place in the custom made trays. It is very safe. The main side effect can be tooth sensitivity which can easily be reversed. good luck.
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