Use Adaptil Junior from the day you bring your puppy home from the breeder until the puppy is 6 months old. The collar should always be worn, it should only be removed for shampooing.It is easy to use, has proven efficacy in several scientific studies and is natural for the puppy. Recommended by veterinarians.Use Adaptil Junior and give your puppy the best conditions for a successful start with a new family.Facts about Adaptil Junior Collar:Makes your puppy feel calm and secure.Suitable for puppies up to 15 kg.The collar lasts for about 4 weeks.Recommended by vets.