Expose your dog to Dog Appeasing Pheromone, aka DAP, with this collar, which transmits it directly through their skin. 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. The collar may be cut to size.