You could basically put this on a Friday and not worry about your pits again for the whole weekend—that’s how powerful it is. It’s fragrance-free and doesn’t come off when you shower. If you couldn’t tell, this stuff doesn’t mess around. When your pits leak like pasta strainer, give Certain Dri a test run — just don’t expect it to be one of the best-smelling antiperspirants for men. In fact, expect no scent.