Diffuser Refill for Cats

Diffuser Refill for Cats

€29,95
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Stops peeing outside the litter box

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Puts an end to furniture scratching

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No more hiding when guests visit

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Eases tension in multi-cat households

NeuroScent™ is more than a scent, it's a science-backed signal. Developed by experts and safe for everyday use, it travels straight to the calming part of your cat's brain through the organ of Jacobson, resulting in visibly calmer behavior with no medication or supplements needed.

Free shipping on orders over €50
Express shipping

Trusted by cat boarding facilities

So convincing, professionals use our diffusers themselves. Trusted daily in boarding catteries, where naturally territorial cats have to adapt to a temporary new home

Shipping and returns +

🐾 Shipping costs:
Free shipping on orders over €50. Orders under €50 include a small shipping fee, calculated at checkout

🐾 Delivery time:
Please allow us the following shipping times: Express delivery: 4-7 days

🐾 30-day trial period:
30-day risk-free trial. Not happy with the results for your pet? Reach out to us at support@boelou.com with your name, order number, and item within 30 days of delivery. After confirmation, you have 14 days to return it
Happy pet parents

40,000+ happy pets and counting

★★★★★ Rated 4.7 average from 1,500+ reviews

Jessica and the Villa Whiskers team with Boelou
★★★★★

“Cat fights, accidents outside the litter box, those are the moments that worry us most. Nothing beats a day with no hissing, no scratches, no mess in the wrong place. Since Boelou, we've had more and more days like that.”

Jessica & TeamVilla Whiskers
Flow the cat with Boelou
★★★★★

"Our cat hid for days after we moved. I heard about Boelou through a friend. It works! Within 2 days, Flow was curled up on our lap again like nothing happened."

RickFlow's proud pet parent
Snoesje with Boelou diffuser
★★★★★

"Snoesje used to hiss and scratch at anyone who came in: territorial, I think. Since the diffuser, she even lets strangers pet her and is much more at ease overall."

MaaikeSnoesje's proud pet parent

Customer Reviews

Overall rating: 4.8 / 5 from 52 reviews.

So glad you can order the refills separately. Just swap the bottle and the calm stays in the house. Grijsje stays relaxed.

Kelly B. 5/5 Verified

Diffuser Refill for Cats

Our cat always used to creep around tensely, much calmer now. Especially noticeable when visitors come over.

Vivian T. 4/5 Verified

Diffuser Refill for Cats

Fireworks season finally wasn't a catastrophe. The cat stays calmer than ever.

Anastasia P. 5/5 Verified

Diffuser Refill for Cats

Surprised how well this works. She's less jumpy and stays relaxed for longer periods. Really recommend this.

Fleur F. 5/5 Verified

Diffuser Refill for Cats

I was skeptical, but Maru is done with the under-furniture hiding routine. Carrier time was always dramatic, much more chill now.

Kim K. 5/5 Verified

Diffuser Refill for Cats

The cat leaves the couch alone. Calmer house and that makes a difference for everyone. Great.

Kaylee S. 4/5 Verified

Diffuser Refill for Cats

Miep has calmed down considerably, especially when we're away. The meowing at the door is over.

Judith V. 5/5 Verified

Diffuser Refill for Cats

Stocked up on refills right after the first diffuser because our cat genuinely calmed down. I'll never run out again.

Lotte D. 5/5 Verified

Diffuser Refill for Cats

Minoes has been sleeping through the night since we turned this on. She used to pace around half the night. Great result.

Emma V. 5/5 Verified

Diffuser Refill for Cats

Just plugged it in and het nachtelijke gerace is voorbij. Would recommend to anyone.

Marit S. 5/5 Verified

Diffuser Refill for Cats

Works better than expected. Our cat lies relaxed on the windowsill again instead of pacing.

Naomi S. 5/5 Verified

Diffuser Refill for Cats

Seriously one of the best purchases this year. Every night there was that racing through the house and that's over now. Smells subtle.

Charlotte D. 5/5 Verified

Diffuser Refill for Cats

Sammie is een stuk relaxter sinds dit in de kamer staat. No intrusive scent, just right.

Sandra V. 5/5 Verified

Diffuser Refill for Cats

Our cat was always on edge when visitors came, much more relaxed now. It really makes a difference in the atmosphere at home.

Daphne V. 5/5 Verified

Diffuser Refill for Cats

The refill lasts for weeks, didn't expect that. I now buy a few at a time so I never miss out.

Gerda B. 5/5 Verified

Diffuser Refill for Cats

De dierenarts tipte dit en the constant wary movements around the home have ended. Worth it — case closed.

Charlotte S. 5/5 Verified

Diffuser Refill for Cats

Still wondering if it's the product or just her getting used to things, but she is calm. Can't hurt either way.

Chantal M. 5/5 Verified

Diffuser Refill for Cats

Since we turned this on, Puk comes and sits on our lap again. He used to hide under the couch all day.

Jenny J. 5/5 Verified

Diffuser Refill for Cats

Uit nieuwsgierigheid besteld en they've outgrown the hissing stage. The vet said they've never seen him this calm.

Liv W. 3/5 Verified

Diffuser Refill for Cats

Storm the sofa shredding days are behind us. Social visits are actually enjoyable again. No-nonsense and effective.

Rianne D. 4/5 Verified

Diffuser Refill for Cats

Since moving it had been non-stop drama, so I tried this, and Simba purrs with satisfaction again. The carrier is much calmer now too.

Cindy V. 5/5 Verified

Diffuser Refill for Cats

Nice that you only need to buy the refill, saves money and it works just as well. Poekie stays nice and calm with it.

Jasmijn G. 5/5 Verified

Diffuser Refill for Cats

Had zero expectations, but what a surprise. Since this has been on it's calmer in the house and she doesn't meow half the night anymore.

Emily J. 5/5 Verified

Diffuser Refill for Cats

Ordered a few refills right away when the first one was nearly empty. They work just as well as the original, no difference at all.

Nadia W. 5/5 Verified

Diffuser Refill for Cats

First I thought it'd be a waste of money, but the tense creeping around is over. Our cat has become noticeably calmer.

Fleur D. 4/5 Verified

Diffuser Refill for Cats

First I thought it wouldn't do anything, but my cat has embraced a calmer way of being. Will definitely keep using this.

Lucia G. 5/5 Verified

Diffuser Refill for Cats

She was always tense around commotion, much more relaxed now. The effect is subtle but definitely there.

Ana S. 5/5 Verified

Diffuser Refill for Cats

The cat is less tense in the carrier. She used to meow the entire trip, now she's calm.

Bo D. 5/5 Verified

Diffuser Refill for Cats

Got refills right away when the first one was almost done, because I didn't want to miss this. Works exactly like the original.

Loes V. 5/5 Verified

Diffuser Refill for Cats

Simba responds much more calmly to everything since this has been plugged in. No intrusive scent, just right.

Magda W. 5/5 Verified

Diffuser Refill for Cats

Tried it on the vet's recommendation and glad I did. Our cat is calmer and you can tell.

Chantal V. 5/5 Verified

Diffuser Refill for Cats

To be honest, I didn't have much faith, but the hissing drama between them has completely ended. Solid product.

Isa V. 5/5 Verified

Diffuser Refill for Cats

Had zero expectations, but what a pleasant surprise. The cat doesn't race through the house in the evenings anymore.

Petra P. 5/5 Verified

Diffuser Refill for Cats

She always used to crawl away trembling during thunderstorms, now she handles it so much better. Clear difference in behavior.

Femke V. 5/5 Verified

Diffuser Refill for Cats

Ordered out of desperation, but it works. She's become less jumpy. Pleasantly surprised.

Yvonne F. 5/5 Verified

Diffuser Refill for Cats

Our cat sometimes used to pant from the stress, much calmer now. Especially noticeable during busy moments.

Pien D. 5/5 Verified

Diffuser Refill for Cats

The cat doesn't hiss at every sound anymore. Calmer house and everyone can feel it. Great purchase.

Emily J. 5/5 Verified

Diffuser Refill for Cats

Just plugged it in and the after-dark meowing has ceased. Couldn't recommend more highly for a busy kitten.

Lisa V. 5/5 Verified

Diffuser Refill for Cats

The refill arrived quickly and I can't tell any difference from the first one. I always keep a spare on hand now.

Beatriz S. 5/5 Verified

Diffuser Refill for Cats

Op aanraden van een vriendin geprobeerd en our precious pet is beautifully settled. The cat rivalry was intense, they've become best friends.

Sara H. 5/5 Verified

Diffuser Refill for Cats