Talc

Talc is a kind of powder that is really soft and smooth. It's used in lots of things like makeup, baby powder, and even some kinds of medicine. It's made from something that's kind of like a rock, but not as hard.

When you put talc on your skin, it can help make it feel really nice and dry. That's why people use it on their babies' butts when they need a diaper change. But, some people are worried that talc might not be good for your body if you breathe it in. That's why some companies are working to find different things to use instead.