Pumice Stones work best for exfoliating tough skin, like on your feet. Add it to your at-home pedicure and exfoliate your feet/toes. You will likely want to avoid a stone on sensitive areas like your face and if you have acne-prone, sensitive, or very dry skin. While soaking yout skin, also soak your pumice stone in warm water. NEVER use a dry pumice stone on your skin.