Urine Off Veterinary Cat & Kitten concentrated formulation eliminates all urine odours, tackling high-protein cat diets that create pungent smelling urine. It eliminates both fresh and old urine stains and odours (even years old!) Our cat formula has a higher viscosity formula that better adheres to vertical surfaces where cats have sprayed on walls, furniture or upholstery. Works on previously soiled areas to eliminate markers that tend to attract cats back to the same spot. Veterinary strength Urine Off is formulated to destroy urine, permanently removing urine from all hard and soft surfaces. Urine Off is the #1 Veterinarian Recommended Odour and Stain Remover in the USA, and is used and recommended by veterinarians worldwide.