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Re:Show HN: I invented a caffeinated toothpaste by schrodinger on Friday September 16, 2016 @05:39AM (#12512842)
Isn't caffeine a pretty strong acid? I'm really wondering if this is any good for your teeth.
Re:Show HN: I invented a caffeinated toothpaste by AstralStorm on Friday September 16, 2016 @12:53PM (#12515360)
It is probably neutralised as otherwise the toothpaste wouldn't be effective. Increasing pH is one of the mechanisms killing bacteria and preventing decay.