Best Cat Relaxants of 2026

"During my move from San Diego to Texas, these treats were a lifesaver for keeping my cats calm. My one cat, who usually screams for hours in the car, stayed quiet for almost 12 hours after taking these. The treats kicked in within half an hour, and I had no trouble getting them to eat them. I highly recommend giving them a try!"

"My very picky senior cat absolutely loves these treats! She started eating more right away and seemed much calmer at night, which helped both of us sleep better. I’ve shared this product with friends because it truly made a huge difference in our lives."

"I have a 6-year-old cat and a 4-month-old kitten who are constantly at odds. While they enjoy the flavor of these treats, I found that it takes quite a few to calm them down, so the effect is mild in my case. Still, they might work better for other cats—mine are just a bit stubborn."

"After my cat’s surgery and multiple vet visits, she became withdrawn and anxious, hiding from us and not acting like herself. Once I plugged in this diffuser, I saw a huge change almost immediately—she started relaxing, letting us approach her, and even purring again. I truly believe this product helped her recover emotionally. If you have a stressed cat, it’s absolutely worth trying."

"I brought home a feral kitten and wanted to make her transition as smooth as possible, especially with my resident cat. When the diffuser was empty, the cats started fighting, but once I refilled it, their calm behavior returned. The difference is really noticeable when it’s not working. It’s not a miracle in itself, but it’s an effective support for managing multi-cat tensions."

"I used this product to help my cat cope with anxiety after his lifelong dog companion passed. He was over-grooming and overeating, but three weeks after setting up the diffuser, his anxiety symptoms have lessened. I do wish the green light was dimmer, and the refills are pricey, but I would still recommend it for anxious cats."

"After switching from the spray to the diffuser, I noticed my cats are noticeably calmer and fighting less. The plug-in is far more convenient and lasts longer compared to the spray. There's a slight scent at first, but it fades quickly. The diffuser does get warm, but not hot, and I appreciate the cap for safe storage. I highly recommend this product for reducing feline stress easily and effectively."

"With two cats who didn't get along, I tried both the spray and three diffusers based on recommendations. I saw a quick, albeit modest, improvement in their behavior. One diffuser leaked and had to be returned, but the others worked fine. It's important to keep the units upright and away from anything underneath. While it's a helpful temporary fix, refills can get expensive and not every cat will respond the same. Still, I'd suggest trying this product for multi-cat households."

"I bought two diffusers to help my adopted cats get along, and they've made a real difference in easing their adjustment. However, the latest model I received has an unwanted light on the front that can't be turned off, which wasn't mentioned in the description. Aside from this small annoyance, I highly recommend the product for improving cat harmony."

"After plugging in the diffuser, I noticed my cat became noticeably calmer and more relaxed, especially at night and during changes at home. It's simple to use, has no strong smell, and requires little maintenance. I've also seen less scratching and more peaceful behavior overall. I truly recommend it for anxious cats."

"I was skeptical at first, but the TherapetMD 60-Day Cat Calming Diffuser has truly been a game-changer for my home. One of my cats who used to spray and act aggressively is now much more relaxed, and the tension between my cats has eased. I appreciate that it's odorless, easy to set up, and safe for both pets and people. The refill lasts a long time, making it cost-effective and convenient."

"This calming diffuser has been a great addition for my cats' transition after moving. The sturdy, well-made design blends seamlessly into our home and provides a consistently calm environment. It's a reliable product that delivers on its promise—I would definitely repurchase it."

"I recently tried this spray for a cross-country move with my three kitties, and it’s been a lifesaver. The plug-in calmed my cats during chaotic packing, and the spray kept them relaxed in the van. I haven’t seen any spraying or stress behaviors during this stressful time. I wish I’d found it years ago!"

"For our long road trips, I use this spray in the carriers and on bedding. It genuinely keeps even my most vocal cat calm for hours in the car, and all three stay quiet and relaxed. I also use the diffuser in hotel rooms for extra comfort. Traveling with my cats would be much harder without it."

"I’ve tried several calming products, but this is the only one that consistently keeps my cat from peeing or pooping in his carrier during car rides. Following the directions has made stressful trips so much easier, and cleaning up is no longer a hassle. Definitely worth the cost for the results."

"I've been using this product for two years after my cat developed urinary crystals from stress. It’s incredibly effective at reducing anxiety for both my older and younger cats. Very safe, simple to use, and no odor—it’s made a real difference in my cats’ lives."

"After surgery, my bonded kittens had a major falling out—my male cat didn’t recognize his sister at all. I tried the Feliway Multicat formula, and it calmed him down within a day. By the end of the week, he was back to treating her like family. This product helped restore peace during a stressful time. Wish the refills were more affordable, but it really works."

"After plugging these in throughout my apartment, I've noticed my high-energy, anxious kitten is noticeably less aggressive and more relaxed. They're simple to use and have made a clear difference in his behavior. I plan to keep using them!"

"I have a house full of cats and was spending a lot on the expensive brand, but this product is just as effective and much more affordable. Ever since we started using these, the aggressive cat has mellowed out and there are far fewer confrontations. I'm sticking with this brand!"

"We tried these during a move and they really helped keep my cat calm and happy in the new apartment. There were no spills, and I could tell my cat was more comfortable in the rooms where they were plugged in. I’ll definitely repurchase because they’ve made a big difference."

"I've tried various calming products for my picky, high-energy cat, and these are the first treats he actually loves. Within an hour, I noticed a significant calming effect—especially at night. I'll keep using them and adjust the amount as needed. Great for easing aggressive or anxious behavior."

"I use these treats nightly for my cats, and they’ve truly helped calm distress and stopped unwanted behavior. My cats enjoy eating them, and it’s become a cherished routine. They work especially well during noisy or stressful events, too. I even recommended them to my daughter for her anxious cats, and it made a difference."

"I bought these for my dog who has separation anxiety, and they really help keep her calm when I leave. The treats work best if given about an hour ahead of time. Just make sure to give the right amount for your pet's weight. These are the most effective calming treats I’ve tried."

"I've been using this calming spray since last July 4th, and it really helps my anxious cat handle loud noises. I use it on surfaces she frequents and for vet trips, especially on her carrier. Highly recommend for cats that get scared easily."

"When I brought home two very fearful, formerly feral cats, this spray made a huge difference in helping them trust me. I used it on their bedding, toys, and even my clothes. Within days, they were noticeably calmer and started bonding with me. It played a big role in creating a peaceful, loving home for them."

"I bought this after reading reviews and used it to help my foster cat and resident cats feel less anxious during introductions. The herbal scent is pleasant, and I spray it on blankets and carriers. It's a good, budget-friendly option compared to pricier brands."

"After trying Comfort Zone, I witnessed a dramatic improvement in my cats' behavior—less fighting and more cuddling. Even my anxious tabby is more confident, and my dog bothers them much less. The product is odorless, covers my 3000 sq ft house well, and I only need a few strategically placed diffusers. Highly recommend for a calmer, happier home!"

"When my two sibling cats started fighting due to outside strays, I was worried. Comfort Zone was recommended, and now, with just one diffuser per floor, my cats are noticeably calmer. I can always tell when it runs out because their tempers flare up again. It’s a must for a peaceful household!"

"My cats struggled after we moved, but installing Comfort Zone made the transition so much smoother. When the diffusers run out, I see the difference—the cats get fussy again. It’s been especially helpful for keeping them calm during stressful times like when my dad goes away for treatment. I genuinely recommend this for anyone with multiple cats."