Calm-K9 - used by 1,000s of superstar owners - helps to create a happy GUT, happy BRAIN and happy & WELL-BEHAVED dog…

Developed by Trainers, Veterinary Behaviourist and a Team of Nutritionists

The Dream vs The Reality

How often do you look at your dog's behaviour and think "this is very different from the outcome I imagined when I got a dog in the first place"?


You’ve read the books, tried various training techniques and got the t-shirt on most (unsolicited!) advice given by other dog owners.Then, we look around us and see other people that may have put the same amount of effort in as us, or even worse, less, and they’ve got much better outcomes!

There's a Secret to Success!

Happy Brain = Happy Gut = Happy & Well Behaved Dog!

So if you are struggling with your dog barking, pulling on lead, being reactive or simply not listening, this is for you!

Take the case study of Karl (The Beagle!) & Lynn (His Owner!) for example...

Karl used to find it hard to settle at home and walks were stressful, with every distraction taking his focus away from Lynn.

Lynn started to feed Karl Calm-K9 once a day and noticed a big difference in his wellbeing and confidence. It started to be noticeable on walks, Karl was checking in with Lynn more frequently and he was present with her 90% of the time!

By combining Calm-K9 with Karl’s normal meals and training, now Lynn and Karl can have relaxed woodland walks where Karl can roam freely in just his collar!

Or Sasha (The Dachshund!) & Karen (Her Owner!) for example...

"An 80% Reduction in Barking...."

Sasha struggled with barking. By working with her owner on training and adding in Calm-K9, Karen noticed an 80% reduction in barking! You can hear Karen's story in the video she sent us here! But - WHY does it work?

The way that Calm-K9 works is by supporting the relationship between a dog’s gut and brain which, research has shown, influences stress and anxiety levels.

Outcomes you might expect when your dog’s brain, gut & training relationship is optimal: 

An end to crazy pulling on the lead...

A dog that actually listens...

An end to barking, lunging and general "REACTIVITY"...

Calm behaviour around visitors to your home...

AND - A dog that chooses YOU over the other dog, squirrel, cyclists or child playing ball!

CALM-K9: The All-Natural, Non-Sedative Brain, Gut & Training Support Supplement for Dogs!

Pick Your Transformation Option!

One Pouch! 


Just 75 pence per day* 

Price £37.49

Three Pouches! 


>> GET FREE SHIPPING! << 

Just 65 pence per day* 

Price £97.49

Five Pouches!


>> GET FREE SHIPPING! << 

Just 55 pence per day* 

Price £137.49

> New vet-developed, all-natural, non-sedative superfood formula


> High-quality, gluten free, natural ingredients – made with mood-boosting Tryptophan, Passiflora and Lemon Balm and a gut-supporting probiotic and L-glutamic, simply add to your dog’s food once daily! 


> Helps all dogs – whatever the breed, age or size of your dog – these superfoods support your dog! 


> Free digital training resource with every pouch - training is key to success and so we include our gamechanging training strategies too!


> AND Combine with an A-OK9 Lickable, boredom-busting K9-Calm Mat – Simply smear some tasty food on the mat, sprinkle on some Calm-K9 Calming Supplement and sit back! One Mat totally FREE when you buy 3 pouches or More!


"Fantastic! - Within 2 days of giving my energetic 18 month old Irish Water Spaniels (2 brothers) their behavior changed. They listen and respond on the FIRST command! A few weeks later we now consistently have recall from our "wanderer" on the FIRST call. Our other, timid boy, is much less reactive to passer-bys and visitors at the door. Even our friends have noticed the change. I can't thank you enough!"  - Linda J  


How Long Will a Pouch Last My Dog?

Calm-K9 is fed by body weight. Your dog only needs a small amount once daily! A Pouch Lasts..

0-10kg Dog, 100 Days!
11-20kg Dog, 50 Days!
21-40kg Dog, 25 Days!
41+kg Dog, 20 Days!

"Being sceptical I held back from this rating until I finished the first carton. My dog has improved no end in the six/seven weeks. She is calmer. walks on a loose lead at my pace and her recall is virtually instantaneous. Some of that maybe down to her age and training but it is such a big improvement in a fairly short time I feel Calm-K9 has played an important part. I have just ordered three more pots." - Terence M  


What's in CALM-K9?

CALM-K9 combines multi-targeted ingredients: L-tryptophan, Passiflora, Lemon Balm, L-glutamic acid and Enterococcus Faecium probiotic! See the full ingredients and product facts here


"Stupendous! - I was amazed at what a difference this has made, I wasn't expecting anything so dramatic. The first thing I noticed was that the expression on my older dog's face has changed - I had been on the verge of asking a vet to try and figure out why he had been looking rather out of sorts, a sort of furrowed brow look. That is all gone, he has brightened up and looks three or four years younger. Both my dogs relax much better around the house now, without any lessening of their interest in training or play. They just seem happier in their own skin. Thank you!" - Kathryn


How Long Do You Feed it For? 

Calm-K9 has a multi-targeted effect and doesn’t just help behaviour! This means you can feed it daily to help to support your dog's brain, gut and behaviour no matter what life throws at them. Make sure to feed for a minimum of 50 days to assess results.


"Our 1.5 year old French Bulldog, Biscuit, is high energy to say the least. We’ve been working with a certified trainer but he was still having issues with lunging and barking, or concentrating during training activities. Since our trainer recommended trying this supplement we noticed Biscuit is able to calm down more quickly when in high stress situations like when he hears a knock at the door or sees other dogs on walks."  - Kyla M

Still Want to Know a Little More About How Calm-K9 Works?


Brain Support


The brain is full of chemicals (called “neurotransmitters”) like Serotonin (the happy chemical), which impacts everyday choices, just like us for us humans! Numerous studies show that supplementing these chemicals into a dog’s diets (in their precursor form) has shown to have transformational effects on their behaviour alone - let alone when combined with training! What we feed our dogs represents the building blocks by which they maintain a calm, confident and balanced approach to life. Adding daily Serotonin, as well as supplementing with ingredients that reduce arousal helps to consider the whole puzzle!  

Gut Support


There’s increasing evidence to show that the microbiome – the tiny (yet hugely important) guys in your dog’s gut – play a huge role in the development of Serotonin and other neurotransmitters.When not supported, these tiny bacteria could directly impact your dog’s behaviour (including reactivity and lack of focus). By providing your dog with new members of their microbiome daily, you help to support their gut and, in turn, the three-piece puzzle that contributes to behaviour – helping to put a stop to struggles like pulling on a lead, barking and lunging, and general lack of focus.

Your Training

With a supported brain and gut, you grow your training on a strong foundation - flipping from a vicious cycle of deteriorating relationship to one of positive spin! Once you’re working in a world where your dog’s brain and gut is working WITH you, rather than against you, the dream of dog-ownership and training that’s fun, easy and enjoyable becomes a reality.The fact is training is vital - it’s the building that serves our dogs on a daily basis to be cool, calm, collected and well-behaved. That building has to be built on a strong foundation otherwise it might fall down in the face of a squirrel, other dog or scary noise!

Frequently Asked Questions

1. How long does it take to work? 

We’ve used a combo of rapid-acting and slow-acting properties, which means some changes may be seen straight away with other effects taking longer. The best thing? It can be used indefinitely for continued support! 


2. Does it work for all dogs? 

Whatever the breed, age or size of your dog – they all share this impactful relationship between brain and gut health and behaviour! 


3. Does it matter what else you’re feeding your dog? 

Feed your dog a healthy diet and add in just a scoop-a-day! It supplements their normal daily diet to give them everything they need for a happier life! 


4. Will it help my specific dog training struggle? 

If you’re doing all the right things and not seeing the results you want, your dog’s challenging behaviour could be a consequence of a brain & gut foundation needing support. By supporting brain and gut, you might see great improvements and find that there have been many training successes hidden until now!


5. What if I don't see results?

 Every dog is different - we get that! That's why we love them! If after 50 days you're not seeing the transformation in your dog's behaviour, we'll direct you to some training resources that might help you further.


6. How much powder will my dog need? And how long will a pouch last? 

 A 20kg dog needs just one scoop (or teaspoon) once daily! 

Check out how much your dog weighs and the amount needed:

> 0-10kg (22lbs): Half a teaspoon daily, lasting 100 days!

> 10-20kg (22lbs-44lbs): 1 teaspoon daily, lasting 50 days!

> 20-40kg (44-88lbs): 2 teaspoons daily, lasting 25 days!

> 40kg+ (88lbs+): 2 and a half teaspoons daily, lasting 20 days


7. My dog takes medication for his behaviour/epilepsy/other disease, is CALM-K9 fine to give as well? 

If your dog is on behaviour medications, epilepsy medications or other drugs that act on your dog's brain, or if you are unsure about the medication that your dog is on, consult your veterinarian before starting CALM-K9. Every dog is different and so your vet would be best placed to determine if your dog can have CALM-K9 if on medications.


Our Guarantee

If after 50 days you’re not seeing the transformation in your dog’s behaviour, we’ll give you the support you need to achieve your dog-owning dreams by directing you to some training resources the might help. Every dog is different - we get that - and with the brain and gut support in place, a suitable training resource is the next step! Get in touch with a transformation advisor at hello@a-ok9.com for free advice and information. Transformation is right around the corner! With every pouch of CALM-K9, we’ll also send you a digital resource with training strategies that promote calmness, calm and positive responses to the world and move you even closer to the dog-owning dream - all built on a foundation of gut and brain health!

Pick Your Transformation Option!

One Pouch! 



Just 75 pence per day* 

Price £37.49

Three Pouches! 


>> GET FREE SHIPPING! << 

Just 65 pence per day* 

Price £97.49

Five Pouches!


>> GET FREE SHIPPING! << 

Just 55 pence per day* 

Price £137.49

Get Three or More Pots of Supplement and (For a Limited Time!) Get FREE SHIPPING and receive a naturally calming, boredom-busting K9-calm enrichment mat absolutely FREE!


What's in Calm-K9? 


Product Facts


IngredientComposition per 2g Teaspoon
Passiflora Incarnata Powder100mg
L-Tryptophan250mg
L-Glutamic Acid100mg
Lemon Balm Extract25mg
Enterococcus Faecium Pobiotic3x10 11 CFU/kg
Mannan Oligosaccharides Prebiotic50 11 mg
Beta Glucans Prebiotic50 11 mg
Yeast Extract
Maltodextrin
Vegeterian Flavouring