"I have a wonderful 3 year old male cat that is sweet in all ways, except he hardly ever would be quiet. Even while petting him he would be purring and meowing at the same time. Physically the vet found nothing wrong with him so I didn't know what was wrong. I was trying to come to terms with the fact that he was just a very vocal cat (not so easy to do at 3:00 in the morning). I had tried some calming aids that I added to his water and it didn't do a whole lot. I'd seen some other prodcuts, but they just seemed so expensive and I had no idea if they would work. I decided to purchase a bottle of this a week ago. On the first evening it was like we had a different cat. He is now so calm and content. He still meows if he really needs my attention, but on the whole now he just seems very relaxed and happy. This is the best purchase I have made all year!!!"