The collar helps dogs in fearful or stressful situations [separation anxiety, visitors, other household dogs, loud noises, new baby, vet visits, traveling]. The pheromone provides a convenient alternative to diffusers which are limited for use in the confines of a designated room. The calming collar goes where your dog goes, whether it is at home or on the go. Can be given to all ages and to all breeds. Effective and safe, and can be used without any long-term effects.