Deodorant choice is an important decision for many people. There are three common types of deodorant: AEROSOL, Arrid, and roll-on. AEROSOL deodorant is a spray that is dispensed from a pressurized container. Arrid is a brand of deodorant that comes in a variety of forms, including AEROSOL, roll-on, and solid. Roll-on deodorant is a liquid that is applied with a roller ball applicator. All three types of deodorant provide protection against body odor.