I purchased the Petlab Urine Stain & Odour Remover Ready To Use Formula for use on my carpet, where one of my cats has had some "accidents". Although I haven't used it on my carpet yet, I actually decided to try it on our back veranda which our resident possums use as a runway to get onto the roof each night to go about their evening business, but in the process can often leave a lot of feces and urine. I was extremely impressed that without any scrubbing or effort on my part, the Petlab managed to clean up a lot of the stains. I had to spray some of the worst spots 4 times but it was so worth it.