Beaphar CatComfort is a simple and effective solution to reducing problem behaviour in cats, such as inappropriate scratching and urination, or general feelings of anxiety. The easy to use refill is only suitable for use with Beaphar CatComfort Calming Diffuser. Beaphar CatComfort® contains a copy of the naturally produced cat facial pheromone, which gives a continuous and reassuring message to let cats know that this a safe area for them to be in. Each refill is effective for up to 30 days.