Does sweat smell?
Sweat doesn’t smell. It’s a clear, odorless liquid mostly made up of water, salt proteins and oils. The smell that we call ‘body odor’ is actually caused by bacteria breaking down protein and oils releasing odor.
Our body is home to millions of harmless bacteria that help the skin’s natural defense. They survive and grow in moist, humid and nutrient-rich environments – just like our armpit areas. Bacteria feed on our sweat and metabolize it, producing byproducts that have a very distinctive smell – like vinegar, cheese or onion.