Thus showing that something is toxic doesn't mean it's something you should never consume. And note that fluoridation started because it was observed that the people in areas with higher natural levels benefited.
To be fair, the quantity of fluorine that would kill you if you consumed it is too small to notice. What's saving you from the fluoride isn't that there isn't enough fluorine to be dangerous - it's that the fluorine is accompanied by things that make it less dangerous.
Table salt is 60% highly toxic chlorine, but you're free to coat your food in it because it's 40% sodium, too. In combination, they're fine and in fact necessary to life. Consumed separately in equal amounts, either would kill you. The quantity isn't what matters.
Why is it so difficult to believe? Haven't we seen enough examples of people in power not giving a shit?
However you don’t swallow mouth rinses like Act, so any nonobvious issue is also greatly reduced.
Not swallowing is great, but I'm sure the concentration is high enough for it to be absorbed anyway.
I personally intend to stay vigilante to dihydrogen monoxide poisoning.
Edit: Haha, speaking about whooshing, use your brain or someone else will.