So relaxed!!. What a life....
Store owner replied: Hi Christine, thank you so much for your five-star review of Stress K9 Chews. Your pups look very comfortable living the good life. Thank you, Berni 💙🐶
Stress K9 Chews
Dog Calming Supplement With Gut Health Support
- Anxiety & Mood
- Routine Changes
- Healthy Stress Response
1 - CHOOSE YOUR PACK SIZE
True Calm Starts In Your Dog’s Gut.
StressK9 is a science-based, vet recommended calming supplement that supports the gut–brain axis and helps dogs feel more relaxed, resilient and at ease.
If your dog struggles with separation anxiety, reactivity, restlessness, or stress-related itching and digestion issues, it’s likely their gut and nervous system need extra support.
Product Description
StressK9 is a situational calming supplement, designed to support the gut–brain axis, ease stress, and promote emotional balance in dogs of all life stages and breeds.
While most calming products focus only on temporary relief, StressK9 pairs soothing botanicals with our unique Bio-K9® tri-biotic blend to support mood, digestion, and nervous system health - delivered in an easy-to-feed chew dogs love.
Always consult your veterinarian for specific advice for your dog.
Ingredients
Tapioca starch, beef bone broth, glycerine, nutritional yeast, valerian root, Bio-K9®, gelatin, carrot fibre, vegan palatant, Tilia cordata, salt, L-theanine, pomegranate, kakadu plum, sunflower oil, soy lecithin, potassium sorbate, natural smoke aroma, vitamin E.
How To Use
Simply feed 1 chew per 5kg of your dog’s body weight in a 24 hour period, as required during times of increased stress.
Use for situational stress, or daily for up to 12 weeks. Thereafter, use periodically as required to manage stress triggers.
Support Your Dog's
Inner Calm
70% of your dog’s immune system lives in the gut, and emerging research links gut health to behaviour, skin, and overall wellbeing.
A well-balanced gut is the key to building emotional resilience and helping your dog feel calm, confident and stress-free.
Our Hero Ingredients
Developed with Experts.
Backed By Science.
Developed with veterinarians, microbiologists and canine nutritionists to support gut-brain balance and emotional wellbeing in dogs.
Each ingredient is carefully selected to deliver calm and resilience with added gut support - backed by research and proven to work where it matters most.
A natural source of B vitamins that supports nervous system function, mood regulation and overall vitality, plus aids in palatability with a great flavour.
A calming herbal extract used for centuries to support relaxation, reduce stress and improve sleep quality without sedating your dog.
Our powerful gut health complex, fermented for optimal potency. Supports digestion, immunity and the gut–brain axis to help dogs manage stress from within.
Also known as the Linden flower, this gentle botanical helps calm anxiety, ease nervous tension, reduces insomnia symptoms and supports emotional balance.
An amino acid found in green tea that promotes relaxation and balanced mood without drowsiness, ideal for managing mild anxiety symptoms during times of elevated stress.
A potent, antioxidant-rich ingredient that supports immune and gut health while helping to reduce oxidative stress, promote calm behaviour, and support mood balance and overall resilience.
An Australian superfruit packed with Vitamin C and antioxidants to help reduce oxidative stress and support immune resilience.
Gut-Loving Stress Relief For Dogs
StressK9 vs Regular Calming Supplements
Grain Free. No Hidden Nasties.
Lactose Free. Gentle On Sensitive Tummies.
Active Ingredients At Effective Levels.
Includes Tri-Biotic Gut Support.
Contains Amino Acids & Fermentable Fibre.
Safe For All Breeds & Life Stages.
OTHER BRANDS
Low
OTHER BRANDS
Low
OTHER BRANDS
Hundreds Of Incredible Transformations
Don't just take our word for it. Hear it from our regular customers.
Dog Owner Approved
Real and honest reviews from dog owners using StressK9
Customer Reviews
Overall rating: 4.8 / 5 from 49 reviews.
Absolutely Love this product will continue to purchase for my doggy Mochi
Store owner replied: Hi Gina, thank you so much for your kind review. We’re so pleased Mochi’s enjoying Stress K9 Chews. Thank you, Berni 💙🐶
Our dogs look amazing since using these chews We highly recommend them
Store owner replied: Hi Fiona, thanks so much for your kind review. So happy your dogs are looking amazing on our Stress K9 Chews—your recommendation means a lot to us! Thank you, Jess 🐶💙
She just seemed " soft " to touch and to interact with 💕
Store owner replied: Hi Alex, thank you so much for your 5 star review. We're so pleased to hear that Stress K9 Chews have made a positive difference for your dog. Thank you, Berni 💙🐶
My girl LOVES the chews. She gets anxious going out n about, and I think it has helped her to keep a bit calmer.
Store owner replied: Hi Cassandra, thank you for your wonderful review. We're so happy to hear your girl is enjoying Stress K9 Chews and that they’re helping with her anxiety. Thank you, Berni 💙🐶
My two look forward to their chews each morning, they love them, also they have never looked better, both their coats are beautiful, and they both just seem happier. Thank you
Store owner replied: Hi Taryn, thank you for leaving such a great review! Look at those gorgeous pups 😍 So good to hear that they love their chews 🐶💙
My fur baby always scratches and licking she seems a lot calmer have tried both powder and chews both worked but think powder on her food seems better result so next order will be powder.
Store owner replied: Hey Lois, thanks so much for your kind review! Happy to hear the powder is working well for your fur baby!
Hi Karen Mitchell, Wholistic Animal Health Advocate. Founder of "As Nature Intended" (ANI) Wholistic Pet Community Resource and Support Network- Established 2014. I wanted to share two photos but alas can only share one. I chose this one because it was taken on the day I tested the effectiveness of these chews. We live in regional W.A, in a very small farming town. My dogs have very little stress in their lives, practically none, so not many occasions I've needed to use these chews.. They recieve other herbs in their protocols, so I don;t give these every day Monty is 8 and intact at the time of this photo. He's been raised with golden Lilly and his Mum. His Mum passed away 3 mths ago, so he's been a changed little man, but pleased to report that we're all getting better, these things take time. These chews have helped with his transition. I know it says to offer daily, I did for a over a week and I never saw any change, so I waited to test them on an occasion. The Digestive K9 chews and powder I use every day for a period rotating with other probiotic strains.... this is just the way I manage my dogs protocols based on their needs. Doesn't mean you have to. In the past there's been a few times after I've bathed Lilly he would become quite stressed and obsessive with her, wanting to hump her. Especially after his Mum passed away. On his day he wouldn't leave her alone, Lilly didn't mind, she just ignored him. I needed something to settle him down, so I gave him one chew, waited to see his reaction to it which was suttle, to I gave him another two and it calmed him right down for a good hour. By that time I dried Lilly his sex drive reduced to practically nothing, but it took a good 8 hours for him to go back to his normal self. I could have given him another chew closer together, but I wasn't sure how his tummy would react to another, as it was the first time I gave him more than one. He was fine with what he had. He weighs almost 10kg. I used some homeopathic meds instead. The next time I could have used them, but i had to fast him. For medical reasons I had to have him castrated, so fasting it was. I would recommend these chews, however as like all herbals and supplements, I suggest to all my followers (they're usually sick dogs) a dog has a history of sensitive tummy, I would go slow for the first time. Offer one, then observe your dog for the next 15-20 minutes. Watch for any reactions, negative or positive. Get to know how your dog reacts to these or any herbal supplement. This is staying proactive. Watch the next bowel movement, thats a good indication too. If any of my dogs had a disease, I would be seeking holistic practitioner for guidance. Thank you Poseidon for yet another great natural product. Stay curious
Store owner replied: Hey Karen, thanks so much for your detailed feedback! We're so glad to hear the Digestive K9 has helped Monty with his transition. We really appreciate your recommendation and advice about our chews. Cheers to your careful observations and caring approach to animal health!
We have a 13 year old spoodle named Chevy who is doing g well for his age but was starting to look old and struggling to jump onto the couch and his hips were getting a little frail, breath was terrible and he has fretting when we had to leave him home to go out. Having horses and following the page we decided to try the powered and treats. He doesn’t like the powder much but we did a couple of packs and noticed the difference. His coat looked better, breath was better or tolerable and his hips seem better. He has bursts of puppy like moves and can jump up on us again. We kept him on treats and now also introduced the stress chew as well for went we can’t take him places. He is old and sleeps a lot but it’s given him a second lease on life as when he isn’t sleeping he’s still playful with the kids and can jump on the couch and in the car!
I use the chews with a dog who has a very busy personality and it has helped to slow her down - she shows herself as being able to focus more and also to be more involved intimately rather than distancing herself.
Store owner replied: Hi Susan, Thank you so much for your wonderful review of Stress K9 Chews. It was lovely to read how much it's helped your girl slow down, focus, and engage more with you.💙🐾
Finding really good thank you. So much more calm.
Store owner replied: Hi Christine, thank you so much for your kind review. We're delighted to hear that Stress K9 Chews are helping your dog feel calmer. Thank you, Berni 💙🐶
My dogs love these chews. They are both older, and get a little stressed when it gets dark. They help with managing this, and they sleep so much better, and calmer.
Store owner replied: Hi Donna, thanks so much for your kind review. So pleased StressK9 Chews are helping your older dogs feel calmer at night. Thank you, Jayda. 🐶🌙
This worked very well with a very young dog I was introducing to showing that had some anxiety to just stepping one foot in the ring! Well now she is happy walking out and strutting her stuff. Thank you for another trusted product produced you you. Well done
Store owner replied: Thank you so much for such a positive review ⭐️
Can’t really tell as my dog hasn’t changed maybe a bit longer and it might work
Store owner replied: Hi Elaine, Thank you for taking the time to leave a review. I'm really sorry to hear you haven’t seen a change with the Stress K9 Chews just yet. Every dog is a little different in how quickly they respond. Some pups show a shift within days, while others take a few weeks. Most consistent improvements are seen between 4–6 weeks of continual use. If you’re in between weight brackets, feeding the higher serve can help, and introducing gradually over 1–2 weeks is ideal. If you’d like, share your dog’s weight and how long you’ve been using the chews, and we can suggest a tailored plan.
Our moodle loves these daily treats. Purchased in hope of a calming effect. Think it will take a while longer to see results but happy to continue the process.
Store owner replied: Hi Sue, thanks so much for your kind review. So glad your moodles love Stress K9 Chews! Thank you, Jess 🐶💙
Works well, very happy with the results.
Store owner replied: Hi Samantha, thank you so much for your kind review. We're thrilled to hear Stress K9 Chews are working well for your dog. Thank you, Berni 💙🐶
Dogs love it they find them a real treat to have
Store owner replied: Hi Rachel, thank you for your review. We have so glad to hear they are loving their Stress Chews! Thanks, Bec
My pup is so calm before sleep time and sleeps so well every night and he loves the taste
Store owner replied: Hi Gina, that’s lovely feedback, we’re so glad to hear her pup is calm before bedtime, sleeping well, and enjoying the taste. Thank you for your review! Thanks, Bec
Very good
Store owner replied: Hi Kym, it's great to hear that the Stress K9 chews are helping your pup. Thank you, Jess
Absolutely amazing product My 1 year old has stopped licking his paws and looks so much happier
Store owner replied: Hi Gina, thanks for leaving such a wonderful review. We're so happy to hear that your dog is benefiting so much from Stress K9 Chews! Thank you, Jess 🐶💙
Our fur babies are looking so shiny and the youngest one has stopped licking her bottom and her poos have become firmer
Store owner replied: Hi Kim, thank you for leaving such a wonderful review! We're pleased to hear that the Stress K9 Chews are helping your dogs. Thank you, Jess 🐶💙
My dog loves them
Store owner replied: Hi Nancy, thank you for your kind review. It's great to know that the Stress K9 chews are helping your pup through those tough times. Thank you, Jess
This is the second time I’ve purchased these chews for my dog and they have certainly taken the edge off her anxiety. She has stopped chewing her paws and it a lot settled while she is being groomed.
Store owner replied: Hi Jaye, thank for taking the time to leave a review. It's wonderful to hear that your pup is benefitting from Stress K9 Chews, and she has stopped chewing her paws. Thank you, Jess 🐶
Great product helps with anxiety a bit and they love them with no skin reactions which is a big thing for us
Store owner replied: Hi Rhys, That’s so great to hear! We’re stoked the Stress K9 chews are helping ease the anxiety and are gentle on your pup’s skin — that’s a big win! Plus, if they love the taste, it makes it all the easier. Thank you, Jess 🐶💙
One chew tablet every evening really helps my 7 month old puppy wind down! Great product, will definitely buy again, thank you
Store owner replied: Hey Louise, thanks so much for your kind review! So pleased to hear your puppy is benefitting from our Stress K9 Chews. Thank you, Jess 🐶💙
Disappointed as my aged dog doesn’t like them , no matter how I try.
Our Kelpie cross currently has Lymphoma and is on Chemo treatment so these have really helped him to have a settled stomach after his treatment. Thanks
Store owner replied: Hey Sarah, thank you for your wonderful review. We're pleased to hear that our product has been helping your pup have a settled stomach during chemo treatment. Thank you, Jess 🐶💙
Great healthy treat
My little miniature poodle is very stressed and anxious when there are storms around , I give her 1 stress k9 chew when i know there are storms coming or when she starts to stress and give her another 1 about 30mins or so later if required depending on how she is and the serveity of the storms. They do calm her and I do not want to be without these stress k9 chews..
Store owner replied: Hi Marie, that's so fantastic to hear our Stress Chews have made such a difference during times of more stress. Thank you for your review, this makes our team's day! Thanks, Bec :)
My dog seems a bit better, will get some more soon.
Store owner replied: Hey Jaye, thanks so much for your kind review! So glad to hear that your dog is starting to feel better. Keep us posted! Thanks, Bec
Excellent products for my horse and dogs alike. Have used for a long time and will continue to.
Store owner replied: Hey Lynne, thanks so much for your kind review and your continued support. We're pleased to hear your horse and dogs are benefiting from our products!
My dog loves the stress chews and seems less anxious.
Store owner replied: Hi Angelique, that's fantastic to hear! Thanks so much for letting us know and your review. Thank you, Bec :)
I give thus to one of my girls who has separation anxiety. If I go out and leave her home even though she has her sister with her she will chew things up, but when I give her these before going out, nothing.
Store owner replied: Hey Barbara, thanks so much for your kind review! We're so glad to hear the Stress K9 Chews are helping your girl feel at ease when you need to step out. Thank you, Jess 🐶💙
Just using occasionally to see if it stops travel sickness. Hildie is not food orientated and does not Particularly like the taste, but it does appear to settle her down, as the last couple of big trips she did not get sick in the car. So that is a big plus for us
Store owner replied: Hey Sharon, thanks for the love – amazing! We're so pleased to hear that Hildie’s travel sickness has improved with the Stress K9 Chews. Thank you, Jess 🐶
This product keeps my dog calm with noticeably good gut health.
Store owner replied: Hi Lynne, thank you for taking the time to leave a review. I am so glad that the Stress K9 chews have helped your pup. 💙🐶
Seem to do the job - dogs more relaxed
Store owner replied: Hey Linda, thank you for sharing your kind review! So glad to hear that our Stress K9 Chews seem to be working. 🐶
Seemed to work well. Not keen to eat as treat, have to add to meal.
Store owner replied: Hey Michelle, thanks for your kind review! So glad to hear it's working well. Mixing the chews with his meals is a great idea to make them more enjoyable.
Works well for our Alsatian.
Store owner replied: Hey Kerry, thanks so much for your kind review! Thank you, Bec :)
Great products
Store owner replied: Thank you 🙏
Love it!!
Store owner replied: Hi Chlo! We are so glad you are loving the Stress Chews. Thank you so much for leaving your review, it makes our day. Thank you, Bec 💚
FAQ
Poseidon Animal Health was founded in Australia in 2017, with a focus on targeted, evidence-based gut health solutions. After creating our successful equine range, we applied that same science-led approach to canine health. We are based in the Illawarra Region of NSW, with manufacturing facilities in Australia, New Zealand and USA. We also export to Europe, the Middle East and Asia.
StressK9 is formulated to support dogs experiencing anxiety, stress, or mood-related behaviours - while also strengthening gut health, which is closely linked to emotional balance.
Developed especially for dogs using the same science-backed approach as our bestselling equine range, StressK9 combines high levels of active ingredients, calming botanicals and our gut-supporting canine-specific Bio-K9® blend to help promote better behaviour, skin health, immune function, and digestive balance.
StressK9 combines calming botanicals including Valerian and Tilia Cordata with L-Theanine, nutritional yeast, antioxidants and our unique Bio-K9® gut health blend. Together, these ingredients provide targeted nutritional support for the nervous system, normal stress response and gut-brain connection.
Your dog’s gut and brain are closely connected. Stress can affect the gut, while an imbalanced gut can make it harder for dogs to cope with everyday stressors. That’s why StressK9 combines calming ingredients with Bio-K9® to support both sides of the gut-brain connection.
StressK9 takes a multi-target approach, combining botanicals traditionally used for their calming properties with Nutritional Yeast, Valerian, L-Theanine, Kakadu Plum, antioxidants and our Bio-K9® gut health blend. This provides targeted nutritional support for both the nervous system and gut-brain connection when your dog needs a little extra help.
Feed according to your dog’s bodyweight, following the feeding guide on our pack. StressK9 is designed for situational use and can be used around occasional stressful events or daily during periods of increased stress, for up to 12 weeks at a time.
Yes, StressK9 can be fed daily for up to 12 weeks when your dog needs additional stress support.
After 12 weeks, we recommend discontinuing daily use and returning to StressK9 periodically only when needed, rather than keeping it in their everyday routine long-term.
Absolutely.
DigestiveK9 provides ongoing daily gut support, while StressK9 adds targeted nutritional support during periods of increased stress. They can be fed together for up to 12 weeks, before continuing DigestiveK9 on its own and returning to StressK9 periodically when needed.
Yes!
In September 2026 we refined the formula to make the chews softer, tastier and easier to eat, particularly for smaller and fussier dogs. Importantly, the key active ingredients responsible for StressK9’s calming support
remain at the same inclusion levels as before, so you can rest assured your dog will receive the same trusted calming support they have experienced with us previously.
Every dog is different. Signs can include excessive barking, panting when they’re not hot, trembling, restlessness, hiding, destructive behaviour, obsessive licking or difficulty settling.
StressK9 provides additional nutritional support during times when your dog may find it harder to cope.
