Cats are creatures of habit so when something in their environment changes such as a recent move, getting a new pet, or even rearranging furniture, can cause them stress. Cats are also very independent and territorial so when a new cat or kitten is brought into the home, tension and conflict can arise between them. What you see as your cat just acting "crazy" may actually be your cat acting out due to stress. Good news! You actually don't have to put up with your cats not getting along these behaviors can be modified and managed by using Comfort Zone products. Our products are clinically proven to reduce multi-cat tension and conflict and create a calming environment. How does it work? Cats use pheromones which are scents to communicate to other cats and affect your cat's emotional well-being. We've mimicked these pheromones that help cats feel calm and safe. When the pheromones are diffused into the air, it naturally signals to your cat that their environment is safe which helps reduce their stress and those behaviors that come with it. The Comfort Zone Multicat Diffuser dispenses a drug-free, unscented and odorless vapor that only affects the cats. We stand behind our product and if you're not satisified, you can return it within 90 days for a full refund! .