★★★★★
Excellent · 4.8/5 · 20,921 reviews on Trustpilot
"Aggression Stopped, No More Spraying, No More Improper Urination"
Safe, gentle formula in a plug-in diffuser.
End the Stress Today
Experience the change, or get your money back
Safe & Drug-Free Relief
Vet Recommended
24/7 Calming Effect
★★★★★
This one worked!
My cats were always fighting — hissing, growling, and attacking each other. I tried other diffusers, but nothing worked. This one made a huge difference! They're so much calmer now, and I keep using it.
★★★★★
She's Finally Relaxed.
My biggest worry was that it would flatten her personality. She's exactly the same cat — she's just not stressed anymore. The spraying stopped in about ten days.
★★★★★
I stopped blaming myself.
She wasn't broken and I hadn't ruined her. She just needed something to tell her the new place was safe. Within three weeks she was sleeping on the couch again.
67%
Of Stressed Cats Get No Help
Multi-pet homes and rescues are the biggest triggers, leading to fights, scratching, and litter box accidents. Once stress takes hold, it's hard to undo.
If your cat is peeing outside the litter box, scratching furniture, or getting into territorial fights, it's mostly experiencing severe stress.
This issue needs to be addressed before it worsens over time.
This issue needs to be addressed before it worsens over time.
You've Probably Tried These Solutions… But They Don't Work
Adding More Litter Boxes
While useful for multi-cat homes, extra litter boxes won't fix stress-driven marking. Many owners add boxes only to find their cat still peeing elsewhere.
Other Pheromone Diffusers
Generic pheromone diffusers don't combine both mammalian and maternal pheromones. Summit Calm+ uses both simultaneously for a stronger, faster calming effect.
Enzyme Cleaners
Enzyme cleaners remove the smell but not the stress causing the behaviour. Your cat will keep marking new spots until the underlying anxiety is addressed.
Changing the Type of Litter
Litter preferences matter for hygiene but have nothing to do with territorial stress. Changing litter rarely stops stress-driven spraying or fighting.
Slow Reintroduction Process
Temporary separation reduces incidents but doesn't resolve the territorial tension. Once reunited the same patterns return — the anxiety is still there.
Don't Rehome Your Cat
Your cat isn't misbehaving — they're struggling with stress. They need you to address the real issue: their anxiety.
Summit Calm+ targets the root cause, helping you and your cat live in harmony.
Summit Calm+ targets the root cause, helping you and your cat live in harmony.
What Summit Calm+ Does
Eliminates Urine Marking
Reduces Territorial Aggression
Decreases Destructive Behaviours
Reduces Stress & Anxiety
Improves Emotional Well-being
Increases Confidence
How It Works
These pheromones target stress-response cells in the brain, helping your cat feel calm and at ease. Having Summit Calm+ diffusers around your home keeps your cat calm automatically, ensuring a peaceful, fresh environment.
Two Pheromones. One Powerful Solution.
Mammalian Pheromones
What They Do: Naturally produced by cats to mark safe territory, signalling comfort and security.
Boosts security — Mimics 'all-clear' signals, reducing stress and creating a sense of safety.
Lessens Marking — Helps decrease stress-related behaviours like urine marking.
Encourages Play — Creates a relaxed environment that fosters curiosity and playfulness.
Maternal Pheromones
How They Help: Mimic the comforting presence of a mother cat.
Soothes and Calms — Eases fear and stress, bringing a sense of peace.
Promotes Bonding — Helps multi-cat households feel more connected.
Eases Transition — Supports cats through stressful changes like new homes or new pets.
What Changes When It Works
Reduction in Scratching
Reduction in Hiding & Fears
Less Tension & Aggression
Urine Spraying Reduction
What Our Customers Say
Verified reviews from real Summit Calm+ users
★★★★★
Jan 12, 2025
No more stress...
I was having issues with my cat peeing outside her litterbox. We thought it might be related to her being stressed because of our dog. We tried the cat diffuser and no issues since. And the dog and cat are getting along better than ever!
★★★★★
14 days ago
She's Finally Herself Again
My two cats are definitely calmer than they were before. The fighting has completely stopped. I wish I found this product sooner.
★★★★★
15 days ago
Great Calming Diffusers
The diffusers work really well with my 5 cats. They help keep the cats calm and reduce any hostilities!
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See results or your money back.
Backed by science, reviewed by vets, and loved by thousands of Australian cat owners — try it risk-free for 60 days. If you don't see a shift in your cat's behaviour, we'll refund every cent. No questions asked.
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STUDIO & APARTMENTS
1x Diffuser + 2 Refills
Perfect for a studio, apartment, or one key room.
Up to 700 sq. ft.
Subscribe price: $46.99
$89.99
$46.99
SAVE 22%
SMALL HOME
2x Diffusers + 4 Refills
Ideal for bedroom + living room, or a compact home.
Up to 1,400 sq. ft.
Subscribe price: $79.99
$179.99
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MOST POPULAR · MEDIUM HOME
3x Diffusers + 6 Refills
Perfect for covering the main areas your cat roams.
Up to 2,100 sq. ft.
Subscribe price: $124.99
$269.99
$124.99
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BIGGEST SAVINGS · LARGE HOME
4x Diffusers + 8 Refills
A diffuser in every zone your cat passes through.
Up to 2,800 sq. ft.
Subscribe price: $159.99
$359.99
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Frequently Asked Questions
How long before I see results?
Most owners notice a shift within 2 weeks — less hiding, fewer incidents, a slightly calmer baseline. Full behavioural change typically settles in over 30 days of continuous use.
Is it safe around my kids, dog and other pets?
You won't smell anything — the pheromone is completely odourless to humans. It's drug-free, non-sedating, and safe to use around children, dogs and other pets. It only communicates with cats.
I tried Feliway spray and it didn't work. Why is this different?
Feliway spray wears off within 2–4 hours. By 3am when your cat's stress peaks, the effect is completely gone. The diffuser runs continuously, 24 hours a day, for a full 30 days on one refill. Most people who say "Feliway didn't work" were using the spray.
Will this work on a very anxious cat?
Actually, the worse the anxiety, the better the fit. The diffuser asks nothing of your cat — she just has to breathe. You don't need her to trust you yet. You just need to plug it in.
Should I unplug it at night?
No. Your cat's stress actually peaks at night, often around 3am. Unplugging it removes the signal at exactly the wrong time. Leave it running continuously.
How many diffusers do I need?
Each diffuser covers up to 700 sq. ft., but walls and large furniture can block diffusion. For best results, most customers use 2–3 diffusers to ensure proper coverage across their home.