This stuff is amazing!! I ordered a bottle and was sceptical because none of my previous purchases, claiming to be a miracle product, had ever taken the stains away. We moved into a new house 2 years ago and my dog started marking everywhere. We knew that there had been 2 large dogs in the house before us so we had the carpets professionally cleaned a few times and he got better but as soon as we introduced anything new, including shopping bags, he marks it. The last time I had the carpet cleaners out they tried to get one of the stains out with their supposed miracle solution and ended up leaving an even bigger stain known as browning. They came back and couldn’t even get that out. My pet peed did!!! And so far every other stain I have thrown at it. Thank you for saving my carpet and my dog cos he was on thin ice!