Feliway Optimum Cat Calming Diffuser Starter Pack is the latest edition to the Feliway range and now calms cats better than ever before and in more situations for enhanced serenity. It contains a new feline pheromone complex that conveys even more impactful messages to your cat which helps them cope with our modern lifestyles. Feliway Optimum contains the most advanced Feline Pheromones Complex, developed by the Feliway research team.Feliway is the leading behavioural product for cats, over 11 million cats have benefited from it and with over 20 years in the market it has a wealth of expertise and 24 studies which back up its claims. The products contain complex pheromones that convey impactful messages to your cat helping them cope and adjust to our lifestyles.Key Benefits & Features Scratching Urine Spraying Tensions & Conflicts Environmental changes (e..g moving home, new baby) Fears & anxietiesAvailable as a home diffuser which has been designed to be plugged in and left on continuously.Feliway Optimum is suitable for any cat or kitten. Use for prevention or to tackle a stress related issue.A refill lasts up to 30 days and needs to be replaced monthly, 1 plug suits all cats and covers a 3 bed home.