This product was recommended by one of my daughters, and oh my gosh, it really worked. I was very surprised as by the third day, there was NO-NON-, NOT ANY order left on the carpet. I used the ultra violet flash light, and you can see where other small stains are located, spray the product on, and the order, and stains are gone. Then a few days later I generally use my own carpet steam cleaner and that seals the deal.