The biggest difference between deodorant and antiperspirant is that one product protects against sweat, while the other does not. Image Credit: AlexanderFord/E+/GettyImages In This Article Deodorant vs. Antiperspirant Benefits of Deodorant Risks of Deodorant Benefits of Antiperspirant Risks of Antiperspirant When to See a Doctor FAQ No one wants to smell musty, sweaty or have a sour body odor. That's why the majority of us swipe on deodorant or antiperspirant every day. Advertisement But while both can keep unwanted smells at bay, there's a difference between these underarm products, and understanding how they work will help you choose the right one for your needs. Video of the Day Video of the Day Here, a dermatologist explains the differences and we dig into the benefits and risks of each product.Deodorant vs. Antiperspirant We get it, it's easy to confuse the two. Both deodorant and antiperspirant often come in a stick, which you swipe onto your armpits, usually after a shower. And...