I have many black bottles of hydrogen peroxide for cuts and scrapes. They are expiring soon and I was wondering if it is good/suitable for whitening teeth? On the bottle it just says rinse in mouth to clean teeth...
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It is not a good thing for whitening teeth as you shouldn't leave it in your mouth for any length of time. Once the bottles expire use it blood stains on clothes only and don't buy more for cuts as it is too harsh and not recommended for cleansing wounds any more. Soap and water or normal saline is what is recommended to clean wounds and cuts with now.
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