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Stop Unwanted Barking… 

Or Your Money Back!


Yep! There really is a 100% natural product that truly will reduce your dog’s unwanted barking. It also has a whole host of other benefits that you’re about to learn! It's called CALM-K9.

Whatever breed, age, shape size and temperament of dog you have, we're so confident CALM-K9 is going to work for you that we'll give you your money back if it doesn't!

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Who are we?

CALM-K9 is brought to you by A-OK9 - A specialist nutrition company for dogs founded by Dr Tom Mitchell and Lauren Langman

Dr Tom Mitchell is a world-renowned veterinarian and dog trainer, best-selling author, and behaviourist. 

Lauren Langman is a world-class agility handler and dog trainer, with the biggest dog training centre in the U.K. (She also won at Crufts!)

Tom and Lauren are the brains behind Absolute Dogs – a revolutionary games-based dog training movement.

After helping and certificating hundreds of thousands of dog-owners worldwide, they saw the transformational benefits their games-based training methods had.

They realised that the games not only improved training, but also a dog’s brain and gut health!

This lead them to do something BIG and work a team of nutritionists, to formulate CALM-K9, a natural powder specifically designed to support the training and owning of dogs.

What is it?

CALM-K9 - An all-natural, non-sedative dietary supplement for dogs that bark, lunge or lack focus. 

  • High-quality natural ingredients - Made with mood-boosting Tryptophan, a gut supporting probiotic, soothing L-glutamic Acid, and calming Passiflora and Lemon Balm.

  • Ongoing support - CALM-K9 can be given on an ongoing basis to support them through life's unexpected events and to support your training and lifelong relationship!

  • Rapid Acting - Some changes seen straight away, others taking 50 days.

  • Helps all dogs - Whatever the breed, age or size of your dog.

  • Works with any diet - just add one scoop per day.

How does it work?

The "Basic" Answer

There’s an important interaction between a dog’s GUT HEALTH and their BRAIN HEALTH.

We can improve how the brain feels, by what’s in the gut!


When a dog’s Brain and gut health are on point, they’re calmer, they focus on training better and guess what… THEY BARK LESS!


CALM-K9 was formulated by a vet and team of nutritionists as a convenient and natural way to boost your dog’s brain and gut wellness.

The "Sciency" Answer

There are three aspects to barking:




We tend to place more emphasis on TRAINING so the other two may surprise you!

Believe it or not, brain and gut wellness have a huge impact. And it’s the interaction between the brain and gut that is particularly significant!


There are two key ‘neurotransmitters,’ in the brain that are important:

GABA, a neurotransmitter which provides a calming effect on the brain and body.

SEROTONIN, which helps to stabilise moods, regulate anxiety, control sleep and regulate feelings of well-being and happiness.


Good bacteria in the gut impact neurotransmitter creation and even directly signal the brain itself.

What’s in our dog’s gut can directly affect how the brain feels! (That’s why so many dogs have been transformed through feeding the CALM-K9 supplement!)

You can see how with this delicate interconnected relationship, if our dog's gut health isn’t on point then that affects the brain, and if our dog’s brain isn’t in a good place then this can directly result in more BARKING!

AND… we can see even with the best training in the world, if brain and gut health aren’t in harmony then the our dogs are less likely to respond well and give us the outcome we’re hoping for… Less barking!







If your dog is on behaviour medications, epilepsy medications or other drugs that act on your dog's brain, consult your veterinarian before starting CALM-K9 use.

Has this worked for other dogs?

Absolutely! CALM-K9 has worked for thousands of Dogs and their owners all over the world! have scroll through a few of our 5 star reviews below:

So what will you get?

An end to barking, lunging and general "REACTIVITY" 

A dog that actually listens...

An end to crazy pulling on the lead...

Calm behaviour around visitors to your home...

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

We'll really give you your money back if it doesn't work?


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!

Every dog is different - we get that - but if after 50 days you're not seeing a reduction in unwanted barking from your dog, we'll give you your money back.

Get in touch with a transformation advisor at hello@a-ok9.com for free advice and information. 

Transformation is right around the corner! 

Stop Unwanted Barking Now!

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