 Because if you're just going in there, because what fluoride, what they claim fluoride does is it helps remineralize your enamel, but it doesn't do anything to address the bacterial infection. It doesn't do anything to get your mouth to a state of eubiosis where it's healthy and the bacteria are not creating acid. And so that is what the xylitol does above and beyond what other ingredients do in oral care products. And it does the same thing in the nose.