Deodorant vs. antiperspirant—what's the diff, and which one is better for your clothes?

Here's the ingredient you should avoid if you want to prevent stains on your clothing.

I’ve written about deodorant before, but I haven’t covered the topic of antiperspirant until now! Actually, up until recently, I’d never even considered the distinction between deodorant and antiperspirant. They aren’t the same thing. And now I know that one of these products (ahem, antiperspirant) is more likely to cause pit stains on your clothing. Let’s find out why.