If you are have excessive perspiration or you have bad B.O. then check out some of the clinical deodorants like Degree and Secret for women. For men, Dove and Degree have clinical protection deodorant. And even if you don't sweat that much, or don't smell it is still nice to have that assurance that you won't if you have the strong stuff. The downside about these prescription deodorants is that the women ones smell strongly like male deo. but that is something you can get past.