Cat owners agree there is no odor quite as pungent as spray from an un neutered male cat. This ready to use formula is the best on the market. Simple Solution Cat Stain & Odor Remover combines advanced cleaners with beneficial bacteria and enzymes that digest the source of odor and stain causing residue. Be aware of enzyme only products since they lack the essential technology of beneficial bacteria to remove the waste completely from the carpet. With Simple Solution, the bacteria eat the residue broken down by the enzymes. The by product of this process is carbon dioxide and water. The carbon dioxide and water are odorless and will evaporate in drying time. Simple Solution has advanced technologies that surpass those in enzyme only cleaners. Use on carpets, laundry and other washable surfaces to safely and effectively eliminate the toughest pet stains and odors, plus other organic stains and odors like grass stains. Certified by the Carpet and Rug Institute Safe to Use Around Children and Pets Non toxic Non flammable Non caustic Manufacturer Money Back Guarantee Upon Proof of Purchase Ingredients Purified water, non pathogenic bacteria, denatured ethanol, mild detergent, natural enzymes and fragrance.