How quick does a dap diffuser start to work?

For dog, cat?: A pheromone dispenser to soothe anxiety and other behavioral problems, that's the hype. Has it been well-studied? Apparently not. First, as with humans, make sure there is no physical problem causing the behavior. Talk to your vet first and find out his/her views. This may be colored by whether or not these products are sold in the vet's office. See below for a review of the research.