Sweating is a natural skin reaction. When the feet sweat too much, this is an unpleasant nuisance. But it also affects the skin's protection and makes it look unattractive. Foot odor is another embarrassing consequence. The feet smell bad because bacteria quickly reproduce on sweaty skin. The bacteria degrade the sweat, causing the nasty odors. Causes of sweaty feet are varied and everyday: exercise, wrong shoes, heat on a sunny day, or overactive sweat glands. Deodorizing foot care products prevent foot odor by specifically combating sweat-degrading bacteria. Product with antitranspirant active substances reduce the amount of sweat. They also strengthen the skin. The foot stays dry and the skin is fresh and nourished.