Turning sweat against itself with a metal-free antiperspirant

Body odor is an unpleasant smell, produced when bacteria living on the skin break down the proteins in sweat. To avoid stinking, some people apply antiperspirants that clog sweat ducts with foreign materials, such as metals, to slow perspiration. As a step toward a more natural solution, researchers have turned sweat against itself using an evaporation-based approach in which the salts in sweat create a gel-like plug.

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