This spray Dog Appeasing Pheromone, aka DAP. This pheromone is present in a mother dog's milk and can calm and soothe both puppies and adult dogs, helping them adapt to new environments. Our clients use this to soothe dogs fearful of fireworks, thunderstorms, visits by strangers, or new houses or environments. We suggest spraying it on your dog's collar, on a bandana, or on your dog's bed.