How It Works:D.A.P. Dog Appeasing Pheromone mimics the pheromone that the mother dog produces to calm and reassure her puppies. Dogs recognize these pheromones throughout life as these pheromones appear to have a relaxing effect for both the young and adults. USES: D.A.P. Collar stays with your dog all the time to help control stress-related behavior – Introduction of new puppy, Going on walks, Thunderstorm season, Fear of traveling, Puppy socialization, Boarding and grooming, Fireworks and gunshots INSTRUCTIONS FOR USE: Fasten the collar around your dog's neck and adjust. Cut off the excess portion of the collar. The effects of one collar last up to 4 weeks. Combining the D.A.P. Collar with D.A.P. Diffuser indoors for stress-related behavior achieves optimal results. CAUTIONS:Remove the collar before bathing or shampooing your dog and replace it after the dog's coat is dry. Collar will not release pheromone when wet. Do not use collar on dogs with extensive skin lesions. D.A.P. Collar is not a pharmaceutical product. COMPOSITION: Dog Appeasing Pheromone 2.5% Inert ingredients 97.5% Contains: FOR PUPPIES & SMALL DOGS – One 17 Collar [Fits necks up to 15] FOR MEDIUM & LARGE DOGS – One 27 Collar [Fits necks up to 25] Adaptil Collar -DAP Dog Appeasing Pheromone Puppy/Small dog 17 inch Collar. I do not receive this product or any others in exchange for this article, I do get a commission for readers clicking the buy now links which helps to differ the cost of hosting this blog and I sincerely hope this article site helps you with your search for Vet Approved Rx products.