A little bit about us
We're dog people first. The kind who read the label on our own food, then looked down at the bowl and thought - why not the same for them? So we built Kooper's: honest, human-grade daily nutrition, formulated with vets and made in the UK, with nothing to hide. Because the people who love their dogs hold a higher standard. We're here to meet it.
It started with one dog. Kooper , a chocolate-and-tan dachshund, and a simple, stubborn belief: that he deserved the same standard we hold for our own food. Not a chew dressed up like a treat. Not an impressive-looking label hiding cheap filler. Real nutrition, with every ingredient and every dose out in the open.
So we spent months with vets and nutritionists building it properly, from the gut up. Eighteen human-grade ingredients, each one there to do a job. No binders, no fillers, no proprietary blends to hide behind. Made in the UK, and tested on hundreds of real dogs - including some very fussy eaters - before we'd put our name on it.
We're a small team who happen to love dogs a little too much. Kooper's is our way of giving them more of the good days and we think the dog reading over your shoulder right now deserves exactly that.
Everything Starts in the Gut
Kooper's combines prebiotics, probiotics, and postbiotics in a single daily scoop - working together to restore microbial balance in the gut. And because the gut governs systemic inflammation, nutrient absorption, and immune signalling, rebalancing it from the inside out produces visible improvements across every connected system - coat, breath, joints, digestion, and immunity.
Made Properly. No Shortcuts.
Real transparency, from our facilities to the bag
Tap any stage to learn more
Meet Our Vets
Five veterinarians helped formulate, test and approve every scoop of Kooper's.
Dr Geoffrey Hartley, DVM
Lead Formulating Vet
Geoffrey led the formulation of Kooper's from the ground up, building the gut-first mechanism and selecting all 18 human-grade ingredients with every dose published and nothing hidden.
Dr Linsey Botham, DVM
Veterinary Nutritionist
With 17 years of veterinary experience, the last 9 specialising in canine health and nutrition, Dr Linsey worked directly on the blend, advising on ingredient ratios and dosing to make sure every scoop is balanced, effective and safe for daily feeding.
Dr Thomas Ellison, DVM
Veterinary Advisor
Reviewed the finished formula and the evidence behind it, and now actively recommends Kooper's to dog owners looking for an honest, science-led supplement.
Dr Helen Zhang, DVM
Veterinary Advisor
A practising vet who assessed Kooper's against clinical standards, signed off on the formulation, and stands behind it as a product they'd give their own dogs.
Dr Marco Ferretti, DVM
Veterinary Advisor
Brings years of clinical experience to reviewing Kooper's, and recommends it to clients as a transparent, human-grade addition to a healthy routine.
The Formula
18 human-grade ingredients. Every one with a job.
Chicory root & dual probiotics restore gut balance from within.
Yucca schidigera & parsley leaf tackle bacterial imbalance at the source.
Algal DHA, zinc & collagen support the skin barrier and restore shine.
Taurine & L-carnitine support energy and lean muscle maintenance.
Spirulina, chlorella & beta glucan build immune resilience through the gut.
Nutrition Label
Real Health Isn't Shaped Like a Treat
The 90-Day Promise
Feed Kooper's daily for 90 days. If your dog doesn't see the benefits, we'll refund every penny - keep the product, no forms, no fuss. The risk is ours, not yours.
FAQ
The honest answers, before you ask.
Kooper's is a powder that mixes straight into the food they already eat - no tablets, no chews, no bribery. It's been tested on over 800 UK dogs, including some of the fussiest eaters, and it passed. The natural beef flavour does most of the work. For the truly stubborn ones, mix the powder with a little water first to form a gravy and stir it through - works every time. And if your dog still won't touch it, our 90-day money-back guarantee means you've lost nothing.
Gut improvements and better stools can show within days; fresher breath and less itching in two to four weeks. Consistency is where it becomes a daily habit - more good days, for longer.
Every dose is published - no proprietary blends, no hidden quantities. Vet-formulated with 18 human-grade ingredients and a clear gut-first mechanism behind every scoop. And if you don't see real results within 90 days, we'll refund every penny. No forms, no fuss. The risk is ours, not yours.
Kooper's daily supplement contains: Stabilised Rice Bran, Inulin (prebiotic fibre), Pumpkin Seed Powder, Brewers Yeast, Beta Glucan, Spirulina, DHA Algal Powder (omega-3), Taurine, Chicken Sternum Collagen, Chlorella, L-Carnitine, and a dual Sporobiotic blend delivering up to 2.1 billion CFU per day - plus additional vitamins, minerals and botanicals. Every ingredient is selected by vets and backed by research.
Kooper's is safe for dogs aged 12 weeks and older. For puppies under 12 weeks, we recommend consulting your vet before introducing any supplement. Their nutritional needs are different during the early growth phase.