Mold feeds on body oils, shower products, cooking oils and bacon grease that collect in the corners of your shower and kitchen. That's why we created Cleanz™, the first ever active enzyme caulk that breaks down these oils eliminating mold food. By taking away the food, we literally strip mold of its power to grow. Plus, unlike mildewcides and repellants that wear out over time, our enzymes are permanently active for long-lasting results.