For most dogs with general stiffness, YuMOVE has the edge over Seraquin, because its green-lipped mussel brings omega-3s and it adds hyaluronic acid. Seraquin gives higher glucosamine and chondroitin doses plus turmeric. Both are sound UK vet products sold as tablets, and neither does anything for the gut, which shapes how much your dog absorbs.
Both names turn up on UK vet practice shelves, both have loyal followings, and both use ingredients with real science behind them. This is an honest ingredient comparison of the two: what each tablet contains, what the research supports, and where each one leaves a gap. If you want the wider picture first, our guide to the gut-joint axis in dogs sets the scene.
What is Seraquin for dogs?
Seraquin is a joint supplement made by Boehringer Ingelheim Animal Health UK Ltd, and it has been stocked in vet practices for years. It comes in two sizes: an 800mg tablet for cats and dogs under 10kg, and a 2g chewable tablet for dogs over 10kg.
The 2g tablet, the one most used for medium and large dogs, contains Glucosamine HCl 500mg, Sodium Chondroitin Sulphate 380mg and Turmeric Extract 50mg. The full list also includes inactivated yeast, maltodextrin, hydrolysed chicken protein, pork liver flavouring, sodium chloride, and calcium stearate as a binder.
Dosing for a 30kg dog: 2 tablets daily for maintenance, doubled for the first 4 to 6 weeks as a loading dose.
Seraquin's selling point has always been turmeric. The brand positions the curcuminoids in turmeric as natural antioxidants that help protect cartilage. That is a real mechanism, with a caveat on absorption that I come back to. What Seraquin does not contain: no green-lipped mussel, no omega-3s, no hyaluronic acid and no gut support of any kind.
What is in YuMOVE for dogs?
YuMOVE is made by Lintbells and is one of the most recommended joint supplement brands in UK vet practice. The range has several tiers. For this comparison I am using YuMOVE Joint Care PLUS, the higher-strength formula for dogs with established stiffness.
Each tablet contains Glucosamine HCl 250mg, Green Lipped Mussel Powder 180mg (a natural source of chondroitin), N-Acetyl-D-Glucosamine 20mg, Hyaluronic Acid 2mg, Manganese Sulphate 3mg, Vitamin C 12.5mg and Vitamin E 1mg. The tablet also lists dicalcium phosphate, fish powder, magnesium stearate and sunflower oil.
Dosing for a 30kg dog: 4 tablets daily for maintenance, doubled for the first 4 to 6 weeks.
YuMOVE's key ingredient is its ActivEase green-lipped mussel, a concentrated extract dried by a patented method that the brand says keeps more of the natural omega-3s. The brand points to its own clinical study of this extract. What YuMOVE does not contain: no probiotics, no prebiotics, no postbiotics and no gut support of any kind.
How do YuMOVE and Seraquin compare for a 30kg dog?
For a 30kg dog, such as a Labrador or Golden Retriever, Seraquin gives more glucosamine and chondroitin, while YuMOVE gives a broader anti-inflammatory mix. At this weight Seraquin needs 2 tablets a day and YuMOVE PLUS needs 4.
Glucosamine: Seraquin delivers 1,000mg as HCl. YuMOVE PLUS delivers roughly 1,080mg of glucosamine-type compounds across 4 tablets.
Chondroitin: Seraquin provides 760mg of sodium chondroitin sulphate directly. YuMOVE provides chondroitin within its mussel powder, and the exact amount is not listed separately.
Anti-inflammatory support: YuMOVE's mussel extract contains omega-3 fatty acids, which have real research behind them for joint inflammation. Seraquin uses a standard turmeric extract instead.
Joint lubrication: YuMOVE PLUS contains 8mg of hyaluronic acid across 4 tablets. Seraquin contains none.
Gut support: neither product contains any.
What does the research say about these ingredients?
The research supports the ingredients more than it supports any single product. Good marketing can blur the line between "this ingredient has evidence" and "this tablet is proven". So it helps to take each one in turn.
Green-lipped mussel (YuMOVE): this is one of the better-studied joint ingredients you can buy over the counter. It is not a painkiller and does not act quickly. It supports the body's own processes over weeks and months.
Turmeric (Seraquin): curcumin, the active compound in turmeric, has genuine anti-inflammatory and antioxidant properties. The catch is absorption. Standard curcumin is poorly absorbed by mouth and broken down quickly. Seraquin uses a standard extract, not one of the specially processed forms designed to improve absorption, so in my view its benefit at this dose is uncertain.
Glucosamine and chondroitin (both): these are the classic joint ingredients and are widely used for stiffness. Only part of any oral dose reaches the bloodstream. The gut is not a passive delivery tube. It actively interacts with what passes through it, so a dog with an upset or depleted gut may get less benefit from the same label dose.
Does Seraquin's higher glucosamine dose mean it works better?
Not necessarily. Myth: the biggest milligram number on the label is the strongest supplement. The number on the label is not what your dog absorbs. Absorption depends on the format, the binders and the state of your dog's gut on the day.
A compressed tablet has to break down before anything is absorbed. Binders such as maltodextrin, calcium stearate, magnesium stearate and dicalcium phosphate are safe, but they add bulk and do nothing for the joint. That is why I never judge a joint supplement on raw milligrams alone.
Why does gut health matter for joint supplements?
Gut health matters because the gut decides how much of any supplement reaches the joints. You can give your dog the best glucosamine money can buy. But if the gut lining is inflamed or the gut bacteria are depleted, those ingredients pass through a system that cannot use them well.
The picture vets commonly see is a dog on a reputable joint supplement for months with little improvement. The joints are reasonable for the dog's age, but the gut is not. There may be a history of antibiotics for ear, skin or urine infections, with soft stools now and then. Supporting the gut alongside the joint often helps that dog respond better.
Prebiotics, probiotics and postbiotics work together to support the gut barrier and the bacteria that live there. Our guide to the dog gut-immune connection explains how that link works.
Key takeaway: neither YuMOVE nor Seraquin contains a single prebiotic, probiotic or postbiotic, so neither helps the gut that has to absorb it.
Which dog breeds need joint and gut support most?
The breeds that need both most are the ones prone to joint problems and gut sensitivity at the same time. Labrador Retrievers are the classic example. They carry a real risk of hip and elbow dysplasia, and they are prone to eating things they should not and to food sensitivities. A Labrador on antibiotics for a recurring ear infection may get less from a joint supplement just when it is needed most.
Cocker Spaniels have a similar profile: high energy, sensitive guts and a tendency to ear infections. Our guide to Cocker Spaniel joint care covers their needs. French Bulldogs, German Shepherds, Golden Retrievers and Rottweilers all carry well-known joint risks too, and all do better when the gut and joints are treated as one system.
Is there an alternative to YuMOVE and Seraquin?
Yes. An all-in-one powder that supports the gut and the joints together is the main alternative to a joint-only tablet. Both YuMOVE and Seraquin work from the joint outward and stop there.
Juno Daily for joints is a vet-formulated powder built around that idea. Each scoop contains Glucosamine 300mg, Chondroitin 150mg and Omega-3 DHA 100mg. It also has chicory root and MOS as prebiotics, the Calsporin probiotic, postbiotics, slippery elm, spirulina, L-carnitine and vitamin E.
There are no fillers or binders: no maltodextrin, no magnesium stearate and no dicalcium phosphate. It mixes into any food, which suits dogs who spit out tablets. It does not contain hyaluronic acid or turmeric, so it is not a like-for-like swap on every ingredient. If you are unsure which route fits your dog, the Juno supplement quiz is a sensible first step before you buy anything.
For other options on the UK market, see our review of the best YuMOVE alternatives and our YuMOVE vs Nutraquin Plus comparison.
Which is better for an older dog with arthritis, YuMOVE or Seraquin?
Between the two, YuMOVE PLUS is the better choice for an older dog with established stiffness. Its mussel extract has stronger backing and it adds hyaluronic acid for joint fluid. Seraquin is a respectable vet product with higher raw doses, but it is a narrower formula, and its turmeric is in a form the body absorbs poorly.
Older dogs are also more likely to have had antibiotics over the years, which makes gut support more relevant, not less. Both brands are genuine products and neither is a scam. Both are ongoing monthly costs, so it is worth asking how much of that spend your dog actually absorbs.
Is YuMOVE or Seraquin safe for long-term daily use?
Yes, both are designed for long-term daily use, and YuMOVE and Seraquin are safe long term for most healthy dogs. Dogs with shellfish sensitivities should approach the mussel in YuMOVE with care. Seraquin's turmeric is at a level generally considered safe, but talk to your vet first if your dog is on blood-thinning medication.
As an MRCVS-registered vet, I would always rather you checked with your own vet before starting any supplement, especially if your dog is on prescription medication or has a known gut condition. A dog who is limping, in pain or suddenly stiff needs an examination, not a supplement swap. Our guide to the signs of arthritis in dogs helps you spot the early changes. Never give your dog human glucosamine supplements, as some contain ingredients that are unsafe for dogs.
YuMOVE and Seraquin are both decent joint tablets, and the right one depends on your dog. If your dog also has a sensitive gut, I would support the gut and the joints together. You can see the full formula of Juno Daily and decide whether it suits your dog better than another tablet.
Frequently asked questions
Is Seraquin stronger than YuMOVE?
On raw glucosamine and chondroitin, Seraquin gives more per tablet. YuMOVE adds green-lipped mussel with omega-3s, plus hyaluronic acid, which Seraquin lacks. So "stronger" depends on which job you are measuring, and the label dose is not the same as what your dog absorbs.
Does Seraquin need a vet prescription?
No. Seraquin is a nutritional supplement in the UK, not a prescription medicine. You can buy it through vet practices and online pharmacies. It is still worth speaking to your vet before starting it if your dog has an existing health condition.
Can I give my dog Seraquin and YuMOVE together?
It is unlikely to cause harm, but it means doubling up on glucosamine for a higher cost. Stacking two joint tablets also leaves the gut gap untouched. Pick one product, give it a fair trial, and ask your vet before combining joint supplements.
How long does YuMOVE take to work in dogs?
Expect to wait at least six weeks. YuMOVE recommends a double loading dose for the first 4 to 6 weeks before you judge results. Mussel-based products work gradually by supporting the body's own processes, and they are not painkillers.
Is turmeric in dog supplements actually effective?
It can help, but the form matters. Curcumin has genuine anti-inflammatory properties, yet standard turmeric extract is poorly absorbed by mouth. Specially processed forms absorb better. A small dose of standard extract, as in Seraquin, has uncertain benefit on its own.
Why has YuMOVE not helped my dog after months?
Gut health is often the missing piece. A depleted gut, from antibiotics, diet changes, stress or ongoing gut inflammation, can reduce how much of any joint supplement your dog absorbs. Supporting the gut alongside the joint often helps. If your dog is still stiff or sore, ask your vet to check for pain.
Can puppies take YuMOVE or Seraquin?
YuMOVE has a specific young dog formula, and Seraquin can be used in younger dogs on a reduced dose. For large-breed puppies at genetic risk, such as Labradors and German Shepherds, talk to your vet about when to start joint support.
Which is better for a dog with a food or shellfish allergy?
It depends on the allergy. YuMOVE's main ingredient comes from shellfish, so it needs care in a dog sensitive to shellfish. Seraquin has no mussel but contains hydrolysed chicken protein and pork liver flavouring. Check the full label against your dog's known triggers with your vet.
This guide is for informational purposes only and does not constitute veterinary advice. Always consult your vet before making changes to your dog's diet, supplement routine, or healthcare plan.
