The Adaptil Collar contains effective pheromones that help to relax puppies & adult dogs in stressful situations. The pheromones used mimic those produced by a mother dog to calm & reassure her puppies as they grow & discover the world. Dogs recognise these pheromones throughout their life, meaning they can help to prevent stress-related behaviours not only in puppies & young dogs, but adult dogs too. The Adaptil Collar can be used to help tackle the following stress-related behaviours: Help promote learning during training & socialisation Help puppies or adult dogs settle in new homes Help dogs to cope with challenging situations such as: Staying in kennels Staying home alone Fireworks Visiting the vet Travelling in vehicles Night crying Christmas New Baby How to fit an Adaptil Collar: Fasten the collar around your dog's neck & adjust to the appropriate size, allowing room for at least one finger between your dog's neck & the collar. Cut off any excess collar. Each collar lasts up to 4 weeks & can be replaced as required. Warning: Remove the DAP collar before bathing or shampooing your dog & replace it after your dog's coat is completely dry. Collar will not release pheromone when wet Do not use collar on dogs with extensive skin lesions Open packaging only shortly before use Store away from children Please note: The ADAPTIL collar is delivered in French packaging with a French description. For more detailed information about FAQ's & usage of this collar, please see pdf documents below.