I've heard anti-perspirants are the ones which not only mask the odor, but decrease the sweating (hence the name) using elements such as aluminum chlorohydrate etc. Deodorants or body sprays however just mask the odor and don't prevent sweating. If you're worried, stick with a deodorant instead of an anti-perspirant. A brand of deodorant for females is adidas absorbant deodorant which also states that it is 100% aluminum free. One brand of body spray that I use and it's great is the aerosol secret body spray.
Hope this helps.