I have several inside cats, and a couple of them unfortunately pee where they feel like it . Over the years, I have tried NUMEROUS products to get rid of the stains/odors with minimal results…UNTIL I tried Purrfect Potion-I cannot recommend this product highly enough!!! On the worst spot, I sprayed it for about a week once a day and let it go….the stain is GONE! It is well worth every penny