Help cats with varied personalities live in harmony with pheromone therapy. The Feliway MultiCat 30-Day Starter Kit diffuses clinically proven synthetic cat appeasing pheromone throughout your home. This synthetic pheromone mimics the natural pheromone a mother cat produces when kittens are born, reducing tension between cats and ultimately promoting a more harmonious home. The Feliway MultiCat 30-Day Starter Kit helps curb your cats' stressful responses to cat conflicts and introducing new cats/kittens. Use Feliway MultiCat diffusers in areas your cats frequent to help control unwanted behaviors including standoffs, stalking or chasing, biting, hissing, growling, spitting, or fleeing. The synthetic cat appeasing pheromone in this formula communicates a reassuring message to your cat, which helps curb or eliminate unwanted behaviors.