Deodorant and antiperspirant sound like the same product and people use them to accomplish the same basic mission: stop underarm body odor. Both options can be effective, but they work in different ways. Is one healthier than the other? For something that goes in your armpit, there’s a lot to ponder.“Sweat itself does not smell,” Dr. Adam Friedman, professor and chair of dermatology at The George Washington University School of Medicine & Health Sciences, tells TODAY.com. Click here to read more.