Interesting. Well, bodies are a chaotic mess, so it makes sense.
But now I wonder, because half an hour ago I was reading around here about toothpastes in the US having SLS, a thing for making the toothpaste foam better, that causes canker sores to a bunch of people, that is banned in the EU (where I’m from), but legal in the US (as usual).
I wonder, even if you’re not from the US (more so if you are)… Toothpaste isn’t the same everywhere, so it could be that we just have different toothpastes.