Nature's Miracle Just for Cats Urine Destroyer is tough on strong cat urine and the yellow, sticky residue that comes along with it. The bacteria-based formula produces enzymes to target urine and freshens with a light fresh scent. When used as directed it's safe to use on carpets, hard floors, furniture, fabrics and more—because curious cats can get into just about anything. Choose from a variety of sizes to meet the demands of your pet-loving home.