For the most clean logic: wet and apply favorite soap or body wash. Massage cloth over body to clean and exfoliate. Rinse cloth and air dry. This product contains an antimicrobial additive that provides continuous protection against bacteria. When built up over time, bacteria causes stains and odors. This protection is built-in during manufacturing, so it won't wash off or wear away keeping your sponge cleaner and fresher for the useful lifetime of the sponge.
Always refer to the actual package for the most accurate information