Nature’s Miracle Stain & Odor Remover enzymatic formula produces enzymes when it comes into contact with a food source pet urine, feces, vomit and other bio-based messes. The enzymatic cleaner will continue working as long as the food source is present. When used and stored as directed, this product is safe for use on carpets, hard floors, furniture, fabrics and more. This spot remover is tough on cat urine, feces, vomit, drool and other organic stains and odors, while freshening with a light citrus scent. This product is safe for your pets and home, when used and stored as directed.