I have a older male cat who started spraying on the back of a chair. He had some health issues, and he is no longer spraying but the chair smelled and I was embarrassed to have anyone in my home. For months I tried various other products but nothing seemed to help. My last resort before getting rid of the chair was My Pet Peed. Quite honestly, at first I was not at all impressed. Not only did the odor not disappear, it got worse. I kept at it, subscribing to the company's "peeling layers from an onion" theory. Lo and behold, after repeated applications, the chair no longer has any odor. I love that, unlike other products I used, My Pet Peed has no cover up scent either. Thanks My Pet Peed.