Odor Zyme is an enzyme based product that is guaranteed to remove urine stains and odor, regardless of age. This unique product works on mattresses, upholstery, leather,carpets, drapes, floors (wood, cement, terrazzo), walls, kennels, etc. You need to apply a volume in an amount equal to the urine. Always test any stain remover on an inconspicuous location first before using. One-step formula makes application easy. Use the 64 ounce bottle as a refill for the spray-on bottle, or use in your own spray bottle or applicator for easy use.