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  • Calm-K9 Max Strength Senior Boost Multibuy - 5 Pouches

    Created by vets and trainers.
    Slows cognitive decline in seniors.
    Natural, non-sedative supplement.
    Supports brain and senses for 7+.
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      Our all-natural senior wellness supplement aids your senior dog’s brain function, calmness and behaviour to have a noticeable impact on their well-being and quality of life.

      Calm-K9 Senior Boost Max Strength features all the power of Calm-K9 Max Strength and is packed with extra cognitive-supporting superfoods formulated to target brain and gut wellness for older dogs.

      • Helps reduce pacing, barking, odd toileting habits and anxious behaviours.
      • Supports brain function and gut wellness for senior dogs.
      • Easy to feed with just a daily scoop mixed in food.

      How quickly will Calm-K9 Senior Boost Max Strength work?

      +

      Calm-K9 Max Strength Senior Boost is usually rapid acting and some changes can be seen straight away. However, just like humans, all dogs are different and others might take longer to see imporvements so we recommend allowing up to 50 days.

      Is this dog supplement suitable for all breeds, ages and sizes of dog?

      +

      Yes! The only thing that affects the daily dosage of Calm-K9 Max Strength Senior Boost is your dog’s size. See our feeding info chart for more details.

      Please Note:
      Calm-K9 Max Strength Senior Boost should not be used in conjunction with SSRIs (Selective Serotonin Reuptake Inhibitors) unless explicitly approved by your veterinarian. Always consult with your vet before introducing new supplements to your dog's regimen, especially if your dog is on prescription medications.

      What is in Calm-K9 Senior Boost Max Strength?

      +

      Calm-K9 Senior Boost Max Strength is specially formulated to support emotional balance, brain health, and gut harmony in older dogs, where age-related changes can make calm behaviour and mental clarity more challenging.

      Each spoonful includes a targeted blend of:

      L-Tryptophan (250mg) – supports natural serotonin production to promote calmness and emotional balance

      Lemon Balm Extract (25mg) – helps soothe anxiety and reduce nervous behaviours

      L-Carnitine (5mg) – supports brain energy metabolism and alertness

      Phosphatidylserine (2mg) – a brain-supporting compound linked to memory and cognitive clarity

      Co-enzyme Q10 (2mg) – supports cellular energy, heart health, and overall vitality

      Probiotics (Enterococcus Faecium 3x10¹⁰ CFU/kg) – promotes gut balance, which is closely tied to behavioural health

      A full B-vitamin complex – including B1, B2, B6, B12, Niacinamide, Pantothenic Acid — for nervous system support and senior energy needs

      Lutein (5mg) – a powerful antioxidant that supports healthy ageing, especially vision and cognitive function

      Natural flavouring – gentle and palatable for fussy senior eaters

      Every ingredient is carefully selected to support calm behaviour, cognitive health, and vitality in senior dogs, with a focus on gut health and emotional wellness.

      Supplement Composition per 2g Scoop
      L-Tryptophan 250mg
      Lemon Balm 25mg
      L Carnitine 5mg
      Pantothenic Acid 5mg
      Niacinamide 5mg
      Lutein 5mg
      Phosphatidylserine 2mg
      Co-enzyme Q10 2mg
      Vitamin C 2mg
      Vitamin E 2mg
      Vitamin B12 (Cyanocobalamin) 2mcg
      Vitamin B6 1mg
      Vitamin B1 1mg
      Vitamin B2 1mg
      Enterococcus Faecium 3x1011 CFU/kg

      My dog is on a special diet. Can they still have this?

      +

      Yes! This works with any diet. The formula is gluten free and is designed to assist your dog’s gut – not upset it!

      How do I give this supplement to my dog?

      +

      We’ve produced Calm-K9 Senior Boost Max Strength as a powder supplement so it can easily be added to your dog’s daily food. Simply measure and mix! We love to spread ours on K9-Calm Mats for an extra calming boost.

      What evidence is there that Calm-K9 Senior Boost Max Strength can aid cognitive decline?

      +

      As with many superfoods, much of the evidence for their benefits comes from research in humans. However, canine cognitive decline shares several characteristics with human Alzheimer’s disease [1-3].

      Lemon balm, a key ingredient in Calm-K9 Senior Boost, has been shown to improve cognitive function and reduce agitation associated with Alzheimer’s disease and cognitive decline in humans [4,5]. Studies have also indicated that lemon balm can enhance cognitive performance and mood in healthy, young individuals [6].

      Calm-K9 Senior Boost contains a blend of antioxidants and B-vitamins that have demonstrated cognition-enhancing effects [7,8]. Additionally, phosphatidyl choline supports neurological health by reinforcing cell structure and aiding in the production of neurotransmitters [9].

      This formula also includes L-tryptophan and probiotics, which contribute further to gut and cognitive health. Details on these ingredients can be found in the Calm-K9 product description.

      References:

      Head, E; McCleary, R; Hahn, FF; Milgram, NW; Cotman, CW. Region-specific age at onset of beta-amyloid in dogs. Neurobiol Aging. 2000. 21:89–96.

      Landsberg, GM; Nichol, J; Araujo, JA. Cognitive dysfunction syndrome: A disease of canine and feline brain aging. Vet Clin North Am Small Anim Pract. 2012. 42:749–768.

      Osella, MC; Re, G; Odore, R; Girardi, C; Badino, P; Barbero, R; Bergamasco, L. Canine cognitive dysfunction syndrome: Prevalence, clinical signs and treatment with a neuroprotective nutraceutical. Appl Anim Behav Sci. 2007. 105:297–310.

      Fast, R; Schutt, T; Toft, N; Moller, A; Berendt, M. An Observational Study with Long-Term Follow-Up of Canine Cognitive Dysfunction: Clinical Characteristics, Survival, and Risk Factors. J Vet Intern Med. 2013. 27:822-829.

      Akhondzadeh S, Noroozian M, Mohammadi M, Ohadinia S, Jamshidi AH, Khani M. Melissa officinalis extract in the treatment of patients with mild to moderate Alzheimer’s disease: a double blind, randomised, placebo controlled trial. J Neurol Neurosurg Psychiatry. 2003 Jul 1;74(7):863-6.

      Scholey A, Gibbs A, Neale C, Perry N, Ossoukhova A, Bilog V, Kras M, Scholz C, Sass M, Buchwald-Werner S. Anti-stress effects of lemon balm-containing foods. Nutrients. 2014 Nov;6(11):4805-21.

      Pan Y, Kennedy AD, Jönsson TJ, Milgram NW. Cognitive enhancement in old dogs from dietary supplementation with a nutrient blend containing arginine, antioxidants, B vitamins and fish oil. Br J Nutr. 2018 Feb;119(3):349-58.

      Pan Y, Landsberg G, Mougeot I, Kelly S, Xu H, Bhatnagar S, Gardner CL, Milgram NW. Efficacy of a therapeutic diet on dogs with signs of cognitive dysfunction syndrome (CDS): a prospective double-blinded placebo-controlled clinical study. Front Nutr. 2018 Dec 12;5:127.

      Lu Liu, Song Qiao, Liying Zhuang, Shanhu Xu, Linhui Chen, Qilun Lai, Wenfeng Wang. Choline Intake Correlates with Cognitive Performance among Elder Adults in the United States. Behav Neurol. 2021, Article ID 2962245.

      Can I feed Calm-K9 Senior Boost Max Strength to a dog younger than 7?

      +

      Yes. Calm-K9 Senior Boost is formulated to specifically target the signs of ageing in senior dogs, but it can be fed to an adult dog of any age, if you wish. However, don't forget that we also have Calm-K9 Max Strength, which is the formulation for younger dogs!

      Don’t forget the Dog Training!

      +

      To make sure your training is on the right track we send you a free training eBook with every pouch. We want you to have the BEST and QUICKEST chance of success and so we highly recommend adding training to your weekly routine.

      Plus, our FREE Senior Dog Bible eBook will give you some super simple, quick and easy ideas and ways you can best support your senior dog’s wellness through their golden years.

      My dog is going under general anaesthetic. Can I still feed Calm-K9 Senior Boost Max Strength?

      +

      As Calm-K9 Senior Boost is centrally-acting, to be safe, we recommend stopping Calm-K9 Max Strength & Calm-K9 Senior Boost Max Strength 3 days before the operation and picking up again 3 days after. All other supplements can be given the day before and restarted after 48 hours.

      Does Calm-K9 Senior Boost Max Strength still have all of the benefits of Calm-K9 Max Strength?

      +

      Calm-K9 Senior Boost contains nearly everything that Calm-K9 contains (the only difference is the absence of Passiflora!) as well as additional ingredients that are specifically useful to support senior dogs as they age.

      Calm-K9 Max Strength Senior Boost Multibuy - 5 Pouches

      As Seen In

      Better Health. Happier Dogs.

      Support your dog’s wellbeing with all-natural superfood support,expertly made dog health & wellbeing products.

      Made By
      Experts

      Our products have been formulated by our team of vets, champion trainers and nutritionists.

      Natural Quality
      Ingredients

      All of our products are 100% natural, non-sedative and supported by research.

      Superfood
      Innovation

      A powerful powder supplement that fits easily into your dog’s mealtime routine.

      Our Quality Ingredients Include:

      Formulated By Canine Nutritionists

      • Created by vets and trainers.
      • Slows cognitive decline in seniors.
      • Natural, non-sedative supplement.
      • Supports brain and senses for 7+.

      Cognition Boosting Lemon Balm

      Promotes senior cognitive function and improves calmness.

      Cognition Boosting Lemon Balm

      Lutein & Vitamins C + E Promote Vision & Hearing

      Lutein and targeted vitamins aid vision and hearing as well as providing brain and nerve support.

      Lutein & Vitamins C + E Promote Vision & Hearing

      Microbiome-boosting Probiotics

      Microbiome-boosting probiotics offer extra senior dog gut support.

      Microbiome-boosting Probiotics

      What Makes A-OK9 Products Different?

      Smarter Dog Health and Wellbeing Starts Here
      Crafted by vets, behaviourists, and nutrition experts, A-OK9 delivers science-backed, all-natural superfood blends designed to support health, behaviour, and longevity—without the fillers or fuss.

      Checkmark icon

      All-Natural Superfood Blends

      No fillers or artificial nasties

      Checkmark icon

      Targeted Health Support

      For calm, joints, digestion & more.

      Why choose Calm-K9 Max Strength Senior Boost?

      Easy daily scoop
      All-natural ingredients
      Vet-approved formulations
      No fillers or artificial additives
      Made in the UK

      All Your Frequently Asked Questions - Answered!

      How quickly will Calm-K9 Senior Boost Max Strength work?

      +

      Calm-K9 Max Strength Senior Boost is usually rapid acting and some changes can be seen straight away. However, just like humans, all dogs are different and others might take longer to see imporvements so we recommend allowing up to 50 days.

      Is this dog supplement suitable for all breeds, ages and sizes of dog?

      +

      Yes! The only thing that affects the daily dosage of Calm-K9 Max Strength Senior Boost is your dog’s size. See our feeding info chart for more details.

      Please Note:
      Calm-K9 Max Strength Senior Boost should not be used in conjunction with SSRIs (Selective Serotonin Reuptake Inhibitors) unless explicitly approved by your veterinarian. Always consult with your vet before introducing new supplements to your dog's regimen, especially if your dog is on prescription medications.

      What is in Calm-K9 Senior Boost Max Strength?

      +

      Calm-K9 Senior Boost Max Strength is specially formulated to support emotional balance, brain health, and gut harmony in older dogs, where age-related changes can make calm behaviour and mental clarity more challenging.

      Each spoonful includes a targeted blend of:

      L-Tryptophan (250mg) – supports natural serotonin production to promote calmness and emotional balance

      Lemon Balm Extract (25mg) – helps soothe anxiety and reduce nervous behaviours

      L-Carnitine (5mg) – supports brain energy metabolism and alertness

      Phosphatidylserine (2mg) – a brain-supporting compound linked to memory and cognitive clarity

      Co-enzyme Q10 (2mg) – supports cellular energy, heart health, and overall vitality

      Probiotics (Enterococcus Faecium 3x10¹⁰ CFU/kg) – promotes gut balance, which is closely tied to behavioural health

      A full B-vitamin complex – including B1, B2, B6, B12, Niacinamide, Pantothenic Acid — for nervous system support and senior energy needs

      Lutein (5mg) – a powerful antioxidant that supports healthy ageing, especially vision and cognitive function

      Natural flavouring – gentle and palatable for fussy senior eaters

      Every ingredient is carefully selected to support calm behaviour, cognitive health, and vitality in senior dogs, with a focus on gut health and emotional wellness.

      Supplement Composition per 2g Scoop
      L-Tryptophan 250mg
      Lemon Balm 25mg
      L Carnitine 5mg
      Pantothenic Acid 5mg
      Niacinamide 5mg
      Lutein 5mg
      Phosphatidylserine 2mg
      Co-enzyme Q10 2mg
      Vitamin C 2mg
      Vitamin E 2mg
      Vitamin B12 (Cyanocobalamin) 2mcg
      Vitamin B6 1mg
      Vitamin B1 1mg
      Vitamin B2 1mg
      Enterococcus Faecium 3x1011 CFU/kg

      My dog is on a special diet. Can they still have this?

      +

      Yes! This works with any diet. The formula is gluten free and is designed to assist your dog’s gut – not upset it!

      How do I give this supplement to my dog?

      +

      We’ve produced Calm-K9 Senior Boost Max Strength as a powder supplement so it can easily be added to your dog’s daily food. Simply measure and mix! We love to spread ours on K9-Calm Mats for an extra calming boost.

      What evidence is there that Calm-K9 Senior Boost Max Strength can aid cognitive decline?

      +

      As with many superfoods, much of the evidence for their benefits comes from research in humans. However, canine cognitive decline shares several characteristics with human Alzheimer’s disease [1-3].

      Lemon balm, a key ingredient in Calm-K9 Senior Boost, has been shown to improve cognitive function and reduce agitation associated with Alzheimer’s disease and cognitive decline in humans [4,5]. Studies have also indicated that lemon balm can enhance cognitive performance and mood in healthy, young individuals [6].

      Calm-K9 Senior Boost contains a blend of antioxidants and B-vitamins that have demonstrated cognition-enhancing effects [7,8]. Additionally, phosphatidyl choline supports neurological health by reinforcing cell structure and aiding in the production of neurotransmitters [9].

      This formula also includes L-tryptophan and probiotics, which contribute further to gut and cognitive health. Details on these ingredients can be found in the Calm-K9 product description.

      References:

      Head, E; McCleary, R; Hahn, FF; Milgram, NW; Cotman, CW. Region-specific age at onset of beta-amyloid in dogs. Neurobiol Aging. 2000. 21:89–96.

      Landsberg, GM; Nichol, J; Araujo, JA. Cognitive dysfunction syndrome: A disease of canine and feline brain aging. Vet Clin North Am Small Anim Pract. 2012. 42:749–768.

      Osella, MC; Re, G; Odore, R; Girardi, C; Badino, P; Barbero, R; Bergamasco, L. Canine cognitive dysfunction syndrome: Prevalence, clinical signs and treatment with a neuroprotective nutraceutical. Appl Anim Behav Sci. 2007. 105:297–310.

      Fast, R; Schutt, T; Toft, N; Moller, A; Berendt, M. An Observational Study with Long-Term Follow-Up of Canine Cognitive Dysfunction: Clinical Characteristics, Survival, and Risk Factors. J Vet Intern Med. 2013. 27:822-829.

      Akhondzadeh S, Noroozian M, Mohammadi M, Ohadinia S, Jamshidi AH, Khani M. Melissa officinalis extract in the treatment of patients with mild to moderate Alzheimer’s disease: a double blind, randomised, placebo controlled trial. J Neurol Neurosurg Psychiatry. 2003 Jul 1;74(7):863-6.

      Scholey A, Gibbs A, Neale C, Perry N, Ossoukhova A, Bilog V, Kras M, Scholz C, Sass M, Buchwald-Werner S. Anti-stress effects of lemon balm-containing foods. Nutrients. 2014 Nov;6(11):4805-21.

      Pan Y, Kennedy AD, Jönsson TJ, Milgram NW. Cognitive enhancement in old dogs from dietary supplementation with a nutrient blend containing arginine, antioxidants, B vitamins and fish oil. Br J Nutr. 2018 Feb;119(3):349-58.

      Pan Y, Landsberg G, Mougeot I, Kelly S, Xu H, Bhatnagar S, Gardner CL, Milgram NW. Efficacy of a therapeutic diet on dogs with signs of cognitive dysfunction syndrome (CDS): a prospective double-blinded placebo-controlled clinical study. Front Nutr. 2018 Dec 12;5:127.

      Lu Liu, Song Qiao, Liying Zhuang, Shanhu Xu, Linhui Chen, Qilun Lai, Wenfeng Wang. Choline Intake Correlates with Cognitive Performance among Elder Adults in the United States. Behav Neurol. 2021, Article ID 2962245.

      Can I feed Calm-K9 Senior Boost Max Strength to a dog younger than 7?

      +

      Yes. Calm-K9 Senior Boost is formulated to specifically target the signs of ageing in senior dogs, but it can be fed to an adult dog of any age, if you wish. However, don't forget that we also have Calm-K9 Max Strength, which is the formulation for younger dogs!

      Don’t forget the Dog Training!

      +

      To make sure your training is on the right track we send you a free training eBook with every pouch. We want you to have the BEST and QUICKEST chance of success and so we highly recommend adding training to your weekly routine.

      Plus, our FREE Senior Dog Bible eBook will give you some super simple, quick and easy ideas and ways you can best support your senior dog’s wellness through their golden years.

      My dog is going under general anaesthetic. Can I still feed Calm-K9 Senior Boost Max Strength?

      +

      As Calm-K9 Senior Boost is centrally-acting, to be safe, we recommend stopping Calm-K9 Max Strength & Calm-K9 Senior Boost Max Strength 3 days before the operation and picking up again 3 days after. All other supplements can be given the day before and restarted after 48 hours.

      Does Calm-K9 Senior Boost Max Strength still have all of the benefits of Calm-K9 Max Strength?

      +

      Calm-K9 Senior Boost contains nearly everything that Calm-K9 contains (the only difference is the absence of Passiflora!) as well as additional ingredients that are specifically useful to support senior dogs as they age.

      What Makes A-OK9 Dog Health
      & Welling Products Better

      All Natural dog supplements that do more than just support - they transform

      A-0K9 Supplements

      Powder = Higher activesTargets calm, joints, gut & moreMixes easily with raw food100% superfood ingredientsVet & behaviourist backed

      Typical Supplements

      Generic, low-potency formulasOne-size-fits-all approachMade for dry kibble mealsFull of binders, fillers & artificialsLimited proof or visible results
      Better ingredients. Smarter formulas. Real results for your dog.
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      Vet Approved

      All-Natural Dog Health & Wellbeing Products

      Our dog health and wellbeing products are formulated by our team of vets, trainers and nutritionists. 100% natural, non-sedative, and backed by research.

      A-OK9 · Vet-Formulated & Research-Backed Supplements
      Vet Approved

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