Review on 🐾 Optimized ThunderEase Multicat Calming Pheromone Diffuser Refill, Enhanced with FELIWAY, Alleviates Cat Conflict, Tension, and Fighting by Courtney Hatcher

My cat started avoiding the litter box again after I replaced one of my diffusers with this brand. After a few weeks I moved it to another room and replaced it with a well-functioning multipurpose comfort zone diffuser. After about a week she started using the litter box more regularly. I can't say unequivocally that this product doesn't work; this may have been a coincidence related to the reduction in outside noise that bothered them. (We have road and forest crews working nearby and the loud noise scares this cat. Maybe she's just reacting to the lack of crews next week.) I've had good luck with the combination of CEVA Feliway and Comfort Zone diffusers. I think finding the right formula for your cat is a matter of trial and error. I currently have two diffusers (one CEVA, one Comfort Zone) in each of the rooms where my nervous kitty spends most of her time. This combination seems to work pretty well. So I would say mix and match, try different brands and write down what works for you. Much luck!