Antiperspirants work by blocking sweat glands, reducing the amount of sweat produced, while deodorants primarily mask or neutralize odor without affecting sweat production. The choice between the two depends on your individual needs. If sweat control is your priority, opt for an antiperspirant. If you’re mainly concerned about odor, a deodorant may suffice. Many products on the market combine both antiperspirant and deodorant properties for comprehensive protection.