Cat stopped using litter tray after scenting it with this product. He went and peed in our laundry. This is how much this deodorizer repelled him. I had to remove the entire litter, wash the box with soap, and refill it with fresh litter before the cat started to use it again. I tried both scents of this brand and the cat hates both. I can't say I love them either as they have a very artificial smell. The chamomille is a lot worse than the rose in my opinion.