FELIWAY Optimum Cat Calming Diffuser Refill (3 Pack, 90 Day Supply) – Cat Pheromone Diffuser Refill for Advanced Support to Reduce Stress, Spraying, Scratching, Fighting and Hiding

My cat had been dealing with a pretty serious over‑licking issue. She was removing patches of fur, and it was clearly stressing her out. After a vet visit, I was told it was likely a nervous behavior and was recommended to try the Feliway calming pheromone diffusers. I’m really glad I did. Once I started using this product, the constant licking stopped, and she’s been noticeably happier and more relaxed overall. It wasn’t an overnight change, but the improvement has been steady and obvious. The 6‑pack value bundle is great for keeping the diffusers running without interruption, and for us, it’s absolutely been worth it. Seeing her comfortable and calm again has made a huge difference. The diffusers don't make any noise and there is no scent. They work great and last about a month. The diffuser fits in a standard outlet and looks like a typical home fragrance type of diffuser.

This actually works. No more marking and a calmer cat! I no longer need to use them. She calmed and stayed calm. She was mistreated as a kitten, and this really helped her with her past trauma.

I had tried Feliway Multicat in the past when we adopted a new kitty, and our resident cat felt his territory was shrinking. We used it in 2 different points in our 1050-sq. ft. apartment to ensure coverage, and it seemed to marginally make a difference. I wasn't exactly sold on Feliway (were these improvements coincidental?), but wasn't disappointed either (a change in behavior did occur within 48 hours of plugging the Multicat in, so... maybe?). Fast forward to this fall, and my boyfriend is out of town for 2 months taking care of family things back home. Our cat Bubba is most bonded with him rather than me, so the absence has been stressing B-Man out big-time. He became constipated, only doing his business every 2-3 days (abnormal for him). Our vet ruled out medical concerns, and all my other attempts to de-stress him did not work. Adding pure pumpkin puree to his food didn't do much, either (besides annoy Bubba that his food was tasting different). Desperate, the internet's declarations that Feliway Classic helps with stress convinced me to drive to a local pet store and get some that day. All Petco had in stock, however, was 1 refill of Feliway Optimum. I did some research on the fly on my phone, decided that Optimum's new formula of multiple pheromones in one sounded effective and intriguing, and made the sale. I kid you not, I plugged this product in on a Monday evening, and Tuesday evening, Big Man pooped. Wednesday evening, he pooped again. Thursday afternoon, more scooping action for me. 1x/day was much more Bubba's usual litterbox schedule. So I decided that, holy cow, a new product might actually work for once, "it wasn't just a scam!", and ordered 2 more on Amazon (again, full coverage for our apartment, as 1 diffuser can do up to 700 sq. ft. MAX - keep this in mind when purchasing). I 've had 2 Optimum diffusers going while my boyfriend is gone, and Bubba has been less mopey, more playful, and much more regular. I'm hoping we won't need them once my boyfriend is back, as $50/month for 2 is steep, but I wouldn't swap this out for anything, not even Feliway Classic and certainly not another brand. Plus, Amazon has it here for $25/refill, and it was $38/refill at Petco, so this is still much better!! This item gave Bubba the relief he needed, so it's worth every penny to me. Side notes: I already owned 2 of the regular Feliway diffusers from our brief stint with using Multicat - the Optimum refills DO fit into a regular diffuser, you do not need to buy the special Optimum diffuser with the LED light if you don't wish to. Also, the diffuser creates an oily film on all items directly around it - I have one in our kitchen, and had to throw away the oven mitt hanging by it because the mitt became coated in wet tacky Feliway oil which did not come out in the washing machine. They can def. be a bit messy, so clear a square foot or two directly around them. Yes, they also make a shiny film on the wall by the outlet they're in. I'll do anything for my kitty and just wipe it clean when it gets noticeable, but if you're looking at using these for the duration of your cat's life, bear this in mind. Overall: diffusers can be a bit messy, seems expensive but Amazon is actually way cheaper than anywhere else, and this product is the real deal. Just try it for a month, see if it helps. I'm sure glad that I did. <3

I have been very impressed with this product. I have been using it since February 2026 and my cat seems to be much less stressed than before we started with the diffuser. I plan to keep using it even though it is expensive.

Excellent product that has helped tremendously with the introduction of a new cat into my household. After one of my cats passed away, her brother's behavior and his meow changed. I decided to bring another cat home and got Feliway to help with the transition. I experimented after about 6 months to see if they still needed the pheromone diffuser and saw right away how much things changed as the refills were not changed. They were more stressed, fought, and stayed away from each other. After refilling the diffusers, they were laying together, 1 grooming and the other allowing grooming, and getting along much better. I am thinking of trying another brand simply because Feliway is costly, however if I do not get the same results I will be coming right back to Feliway since it works so well! It is worth the price to keep the peace in the house!!

Unfortunately the diffuser has not helped my two cats. Also, when I removed the diffuser from the socket it was very hot.

I bought this to help integrate my cats and to get them used to the room that I set aside for them. They still have free range of the house, but this room is THEIR room. It’s their hang out room where they can now be together. I bought the spray to begin with then added the infuser in two outlets. They did the job remarkably well and the cats ALL feel safe and comfy with each other in their room…so much so, that I no longer need the product.

My cat has pretty high anxiety and with FIC, that can be a death sentence. He had a pretty bad flare up after we had moved to a new place, but this stuff really helped him relax. I, honestly, can't really smell much from it, but as long as it keeps my baby content, that's fine with me. It just needs to sit there, silently, and keep him at peace.

I have a sensitive senior cat who doesn’t like change much as cats do, We plug in the Feliway pheromone and it calms him down. I love how you can purchase 6 rather than a single pack. Delivery was fast and condition was fantastic .

Luckily the item is in a plastic container. Maybe the supplier is trying to be green. Item within is ok.

全猫去勢避妊済みですが多頭飼いのためかときどきマーキングされます。各部屋にセットしてみましたが変化無し。何ならすぐ横にもマーキングされる始末でした。

Great product, the only one that helped my troubled cat integrate, after trying dozens of others. I recommend it.

Llego en el tiempo estipulado, aunque fue muy tardado para que se enviara, puede ser por las fechas. Es un excelente producto y mantiene a mis gatos tranquilos y evitando algunas conductas inapropiadas.