Deodorant vs. Antiperspirant: What's The Difference?

Deodorant masks odor, is considered a cosmetic, and offers two forms of protection against odor. The first is antimicrobial properties that reduce the number of bacteria producing odor. The second is a fragrance that masks the odor that is produced. 

Antiperspirant reduces how much you sweat and falls under the classification of a drug. This means they are subject to policies and procedures and may have expiration dates on the labels.

Antiperspirants block your body's eccrine glands, which make sweat. This is usually achieved with an aluminum-based ingredient.