 It probably is a chemical that shouldn't go in your body. Here's an example. Deodorant has titanium dioxide, propylene glycol. Toothpaste has sodium lauryl sulfate. I mean, these are all things that you kind of almost have to have a chemistry degree to even understand how to say them, let alone what they do in the body. But the point is, if you can't pronounce it, if it looks like it's a chemical, then don't put it on your body. And you might think, well, it's just going to my armpit. What's the big deal? It's not like I'm eating it.