I cannot say enough about how fabulous this product is. It got out stains that were years old. It also saved us buying a new king sized mattress. Unbeknownst to us, our cat got shut into our guest room and peed on the bed several times. We tried several products and nothing worked. We thought we would have to throw out the mattress ($$$$) but tried MPP and over the course of several days and about five applications all stains and odor were gone. We knew it was working because that room got really stinky while the pee spots were evaporating but we are THRILLED with the result. For the cost of a jug of MPP we have saved thousands of dollars in replacing rugs and a mattress.