there is something for whitening teeth that they are advertising for less then $10.00?

there is something for whitening teeth that they are advertising for less then $10.00, and they are saying it is probably already in your home. Any idea what it is? It keeps popping up in the advertisements here on the internet. I am so curious to know what it is. If you know, let me know. I don't think it is baking soda, but it could be. The over the counter ones make my teeth too sensitive. Thanks for your help
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Bking soda is probably what they are talking about. I'd recommend a good toothpaste with baking sod (Arm & Hammer makes a great whitenig toothpaste. Here is the key - use Hydrogine Peroxide. That's what's in over the counter stuff. Rinse a few times a day, soak your toothbrush and brush with it - that's what it takes. Good luck!
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