DETAILS: FELIWAY Optimum contains the latest patented generation of the feline pheromone complex developed by the FELIWAY®® research team. This new resort emits enhanced soothing messages, helping your cats feel comfortable and safe at home. FELIWAY® Optimum represents the next generation of pheromone technology with improved efficiency. FELIWAY® Optimum helps cats manage more signs of stress (such as urinary and scratch marking, excessive hiding and conflicts between cats) in more situations, and calms cats better than ever before. Optimal results are usually observed after 3 to 4 weeks of continuous use; In some cats, an improvement is visible from the first 7 days. Connect the diffuser to where your cat(s) spend most of their time and use continuously. The diffuser becomes hot for proper evacuation. Contains 1 diffuser + 1 30-day recharge.