Really helps!.. I have a male kitten who is 10 months old he has been very nervous since 8 weeks old. But recently another tomcat who is fully grown and an adult cat has been hanging around my front door and this is making my kitten more nervous and talkative and he is starting to pee the kitchen floor. I have tried to introduce him to the visiting cat who looks like his twin in adult form (black cat) but the kitten doesn’t like it when I pet the other cat he is screaming to me and his hairs are all standing up and his tail is quivering. I decided to give this product a try. From the first spray on his carry bag my kitten ran to my feet (I think some of the spray hit my shoes) he was lying on his belly and rubbing his face all over my shoes then jumped on his carry bag and did the same face rubbing, he spent over 2 hours just sitting on the bag and seemed very calm and happy! I was so pleased with the results that I immediately ordered another bottle of the spray. It smells quite nice to me, not bad like some reviewers have said. And definitely has a positive effect on my kitten. It’s a shame the spray is only 200ml and not 500ml. It is expensive, but you can’t put a price on your animals happiness if it helps them.