The Alzoo Plant Based Calming Spray for Cats is great for anxiety, marking and more, and it contains no synthetic pheromones. Like humans, cats are susceptible to stress and anxiety caused by a variety of situations. These stresses can result in excessive meowing, destructive behavior, marking, nervousness and loss of appetite. Our Calming Spray helps provide comfort to cats experiencing stress due to new pets' introductions or loud noises. EASY TO APPLY: Sprays in the Cat's environment including onto the Cat's bed, crate, room or in the car. TRY OUR FULL LINE OF CALMING SOLUTIONS: ALZOO Calming Collar and ALZOO Calming Plug-In. SUSTAINABLE and SAFE: PLANT-BASED Ingredients: no synthetic pheromones. Cruelty free, made using recyclable packaging.