Toss those funky-smelling loofah puffs. These all-natural sponges are infused with bamboo charcoal, which is naturally-antimicrobial (so they won't provide a home for bacteria like other sponges do). The material itself is made from the roots of the Japanese Konjac plant, making the sponge naturally alkaline, hydrating, and pH balanced — with a rougher surface for a touch of exfoliation. Use the larger sponge all over, and the smaller one to give your face an acne-fighting deep clean.