Derma Soothing Powder

There is nothing better than this on humid and hot days. It works on the face and body, and it is even so gentle that babies can use it. Underarms, too.

If you gently pat it on the creases of your arms and legs, it doesn't tickle and reduces sweating. Since it is unscented, you can use it liberally.

I actually like that it's unscented. The only downside is that there isn't a separate mirror.