This adaptil® junior collar supports your dog in getting used to new environments and feeling more confident during challenging times in the first months of its life. It contains a synthetic copy of the natural relaxing pheromones that a mother dog would use to calm and reassure her puppies. The adaptil® junior collar has been developed by vets and has scientifically proven effects. Ideally, the adaptil® junior collar should be placed on your new puppy on its initial journey from breeder to its new home and used without breaks for the first 6 months of its life. This adaptil® junior collar is a great, efficient way to support your puppy as it adapts to life with you, without the need for medication. It can help your dog feel happy and loved, and like part of the family from the very first day! Adaptil® junior collar at a glance collar with calming effects, ideal for puppies and young dogs in the first 6 months of life, weighing up to 15kg natural messengers contains a synthetic version of the natural comforting pheromone released by mother dogs, without the use of medication developed by vets with scientifically proven effects odourless with no scent perceptible to dogs or humans eases acclimatisation and socialisation separation from its mother offers feelings of security and helps reduce natural stress and yelping first time being alone for a safe feeling and can reduce anxiety unusual situations can help with facing and overcoming new challenges learning new rules promotes self confidence and training success socialisation supports your dog with getting used to new environments and helps it quickly adapt to feeling part of a new family adjustable size can be extended to fit a maximum neck circumference of 37.5cm lasts up to 4 weeks effects can last for around a month, and the collar should be used continuously for up to 6 months without interruption for best results