Best Joint Supplements for Dogs UK (2026): 10 Compared

Quick answer: there isn't one best joint supplement for every dog. For most UK owners the right pick depends on three things: what the evidence supports, what your dog will actually eat every day, and any allergies (shellfish, chicken or fish). Below we compare ten joint supplements you can buy in the UK on published ingredients, doses, format, allergens and evidence, and tell you which suits which dog.

Transparency note: MedPaw makes one of the products on this list. We've included it, listed exactly what's in it, and judged it on the same criteria as everything else. No brand paid to be included. Product details were checked against manufacturer and retailer listings in October 2026; formulas and prices change, so always check the pack.

Best joint supplements for dogs in the UK: our picks

• Best for fussy eaters: soft chews such as MedPaw Hip & Joint Chews, Movoflex or Flexadin Advanced
• Most widely available: YuMOVE Joint Support for Adult Dogs
• Highest glucosamine and chondroitin per tablet: Seraquin 2g
• Omega-3 led approach: Antinol Joint Care Pro
• Without mussel, krill or glucosamine: Flexadin Advanced
• Only product here citing its own published study: Movoflex
• Budget powder: Pooch & Mutt Mobile Bones
• Working and very active dogs: Canine Cortaflex Working Dog powder

How we compared them

Most "best joint supplement" lists rank products on vibes and affiliate commission. We used five criteria that actually matter to a dog's owner:

1. Published ingredients and doses. Can you see how much of each active ingredient is in a daily dose? Products that list amounts score higher than products that only name ingredients.
2. Evidence. Is there decent research behind the main ingredients, and has the product itself been studied?
3. Format and palatability. A supplement only helps if your dog eats it every day for months.
4. Allergens. Shellfish, krill, chicken and fish are common in joint supplements and matter for dogs with food allergies or sensitive stomachs.
5. Availability in the UK. Several popular products in US and Australian lists aren't sold here under the same name, so we only included products you can buy in the UK.

We did not run our own clinical trial, and we haven't scored products on owner reviews, which are easy to game. Where a figure came from a retailer rather than the manufacturer, we've said so.

What the evidence actually says about dog joint supplements

It's worth knowing this before you spend money, because it changes what "best" means.

The largest recent review of the research, a 2022 systematic review and meta-analysis by Barbeau-Grégoire and colleagues (International Journal of Molecular Sciences), pooled 72 trials of diets and supplements for osteoarthritis, almost all in dogs. Its findings, in plain English:

• Omega-3 fatty acids (from fish oil, green-lipped mussel and omega-3 enriched diets) had the strongest and most consistent evidence for easing arthritis pain. Only 2 of 20 omega-3 trials found no effect.
• Collagen products, including UC-II and eggshell membrane, showed some positive results, but the trials were mostly small and lower quality, so the authors couldn't reach a firm conclusion.
• Glucosamine and chondroitin did not show a pain-relieving effect in the trials reviewed, and the authors recommended against relying on them for pain management.
• Turmeric (curcumin) results were mixed.

Two caveats. First, that review looked at dogs that already had osteoarthritis and measured pain relief. Many owners use joint supplements earlier, to support joint health in active or ageing dogs, which is a different question that hasn't been studied as well. Second, most products combine several ingredients, and very few combinations have been tested as finished products.

What this means for you: if your dog has been diagnosed with arthritis, talk to your vet about an omega-3 source at a proper dose as part of a wider plan, which may include pain relief, weight management and physiotherapy. Supplements are a support, not a replacement for veterinary treatment. Our guide to the best fish oil for dogs' joints covers omega-3 doses and products, and our guide to whether joint supplements for dogs actually work goes into more detail.

The ten supplements, reviewed

1. MedPaw Hip & Joint Chews

Format: soft chew, chicken and bacon flavour, 60 per tub. Dose: 1 chew a day up to 4kg, 2 a day from 5 to 17kg, 2 to 3 a day from 18kg, doubled for the first three weeks.

This is our own product, so read this with that in mind. Each chew declares MSM 185mg, glucosamine 170mg, chondroitin 70mg, green-lipped mussel 70mg, Boswellia serrata 30mg, vitamin C 33mg, vitamin E 24 IU and zinc 3mg, plus hyaluronic acid and flax seed. We built it as a soft chew because the most common reason a supplement fails is that the dog stops eating it.

Good for: dogs who refuse tablets, owners who want one daily chew covering several ingredients, and anyone who wants to see the amount of each main active on the label.

Worth knowing: it's not a high-dose omega-3 product. If your vet wants your dog on omega-3s for arthritis, use a dedicated marine oil alongside it. It contains mollusc and gluten, so it isn't suitable for dogs with a shellfish allergy. See MedPaw Hip & Joint Chews.

2. YuMOVE Joint Support for Adult Dogs

Format: tablet (a "Bites" chew version also exists). The UK's best-known joint supplement, sold widely in supermarkets, pet shops and vet practices. Lintbells has recently renamed the standard tablet from "Joint Care" to "Joint Support".

Each adult tablet lists glucosamine HCl 250mg, 150mg of ActivEase (a green-lipped mussel and hoki blend), hyaluronic acid 1.4mg, vitamin C and manganese. There's no chondroitin. The Plus Max Strength version adds more ActivEase and a little fish oil.

Good for: owners who want a familiar brand that's easy to buy. Worth knowing: its "No.1 vet recommended" claim is based on Lintbells' own 2025 survey of 200 respondents, and its "results in 3 weeks" claim comes from a customer survey rather than a clinical trial. Contains mussel and fish. See our YuMOVE alternatives comparison and MedPaw vs YuMOVE if you're weighing it up.

3. Seraquin 2g (Boehringer Ingelheim)

Format: chewable tablet, 60 per pack. Each 2g tablet lists glucosamine HCl 500mg, chondroitin sulphate 380mg and turmeric extract 50mg. That's the highest glucosamine and chondroitin per tablet on this list, and it's usually one of the cheaper options per tablet (around £20 to £22 for 60 at online vet pharmacies when we checked). There's an 800mg tablet for cats and small dogs.

Good for: owners who specifically want glucosamine and chondroitin at meaningful levels. Worth knowing: it contains hydrolysed chicken protein, so avoid it for dogs with a chicken allergy. There's no omega-3. Compare it in our YuMOVE vs Seraquin guide.

4. Synoquin (VetPlus)

Format: chewable tablets in small, medium and large sizes, plus capsules for small dogs. Sold mainly through vet practices and online vet pharmacies. Published figures for the large tablet list glucosamine HCl 475mg, chondroitin 200mg and krill oil 200mg, scaling down for smaller sizes. UK packs now drop the old "EFA" name.

Good for: owners who like dosing matched to the dog's size, and a combination of glucosamine, chondroitin and a marine oil. Worth knowing: krill is a crustacean, so it's not suitable for shellfish-allergic dogs. See our Synoquin alternatives.

5. Antinol Joint Care Pro

Format: small softgel capsule. Each capsule contains 50mg of PCSO-524, a patented green-lipped mussel oil, providing 20mg of omega-3. It's one of the pricier options (from about £43 for 60 capsules on the official UK site).

You may see "Antinol Rapid" in Australian and New Zealand articles. That version isn't sold in the UK; the UK product is Joint Care Pro.

Good for: owners who want an omega-3 based approach in a small capsule. Worth knowing: the capsule shell is beef gelatin and it contains mussel. Compare it in Antinol vs YuMOVE.

6. Flexadin Advanced (Vetoquinol)

Format: chicken-flavoured soft chew, one a day. Built around UC-II undenatured type II collagen with Boswellia, vitamin E and fish and flaxseed oil. It contains no glucosamine or chondroitin, and Vetoquinol publishes ingredient levels as percentages rather than milligrams per chew. Vetoquinol also sells a Flexadin UC-II product.

Good for: dogs that need to avoid mussel or krill, and owners interested in UC-II collagen. In a small 2019 trial (Stabile and colleagues, Veterinary Sciences), dogs with osteoarthritis given UC-II for 30 days improved on mobility scores, although UC-II fell short of the prescription anti-inflammatory it was compared with in the most severely affected dogs. Worth knowing: contains chicken, fish and oats. See Flexadin vs YuMOVE.

7. Movoflex Soft Chews (Virbac)

Format: one soft chew a day in three sizes (under 15kg, 15 to 35kg, over 35kg). The main ingredient is eggshell membrane, with krill, hyaluronic acid, Boswellia and astaxanthin from algae. Virbac lists it at £24.99 to £33.99 depending on size.

Good for: owners who want a simple one-a-day chew. It's the only product here whose maker cites a published study of the product itself (Nicolas et al., 2022), although improvement in that study was owner-reported. Worth knowing: contains egg and krill. See Movoflex vs YuMOVE, our Movoflex alternatives and Flexadin vs Movoflex.

8. Nutraquin (Nutravet)

Format: sprinkle capsule you open over food. Formerly sold as Nutraquin+. Each capsule lists glucosamine HCl 505mg, chondroitin sulphate 400mg (from squid cartilage) and Boswellia 75mg, among the highest per-capsule figures here. Nutravet publishes these on its international site rather than its UK product page.

Good for: dogs who'll eat powder on food but won't take tablets. Worth knowing: contains squid and may contain shellfish-derived glucosamine. See YuMOVE vs Nutraquin.

9. Pooch & Mutt Mobile Bones

Format: powder (200g), dosed by the teaspoon. Contains fish oil 1.5%, MSM 1.4%, glucosamine HCl 1.4%, yucca and evening primrose oil. Around £9.50 to £11 a tub when we checked, making it the cheapest product here.

Good for: owners on a tight budget who want to try a supplement. Worth knowing: active ingredient levels are low compared with the tablets above, and there's no chondroitin. Contains fish. Our guide to cheap vs expensive joint supplements explains what you get for the extra money.

10. Canine Cortaflex Working Dog (Equine America)

Format: powder (90g). Each 3g serving lists glucosamine HCl 700mg, chondroitin 96mg, UC-II collagen 40mg, Boswellia 40mg and hyaluronic acid 9mg. The brand comes from the horse world and is mainly sold through equestrian and country stores.

Good for: working, sporting and very active dogs, where owners want a high glucosamine dose plus collagen. Worth knowing: allergens aren't clearly stated, and the "30 day supply" only holds for medium dogs at 3g a day.

How to choose the right joint supplement for your dog

A few more rules of thumb:

• Prefer products that publish amounts. "Contains glucosamine" tells you nothing; "250mg glucosamine HCl per tablet" lets you compare.
• Work out the daily cost. Price per tub is misleading because doses vary by weight. Our cost per month comparison does the maths for 10kg, 25kg and 40kg dogs, and our dosage by weight guide helps too.
• Pick a format your dog will take. Compare the best joint chews and the best joint tablets.
• Don't use human supplements. Some contain xylitol or doses that aren't designed for dogs.
• Buy from reputable sellers. Counterfeit supplements do turn up on marketplaces; see our guide to spotting fake dog supplements.
• Consider your dog's conditions. We have specific guides for senior dogs, elbow dysplasia, luxating patella, dogs with pancreatitis and large breed puppies.

Joint supplement ingredients explained

Omega-3 (EPA and DHA). Found in marine fish oil, green-lipped mussel and krill. The best-supported ingredient for arthritis comfort, but the dose matters, and most joint chews contain far less than the levels used in trials. Read more in our fish oil and cod liver oil guide.

Green-lipped mussel. A New Zealand shellfish containing omega-3s and other compounds. Included in many UK products. See our green-lipped mussel guide.

Glucosamine and chondroitin. Building blocks of cartilage and the most common joint supplement ingredients. Widely used and generally well tolerated, but the evidence for pain relief in dogs with arthritis is weak.

UC-II and eggshell membrane. Collagen-based ingredients used at small doses. Some promising small trials; more research needed.

Boswellia serrata. A plant resin traditionally used for joint comfort. Limited dog research. See our Boswellia guide.

MSM and hyaluronic acid. Often added to multi-ingredient formulas. Evidence in dogs is limited.

How long do joint supplements take to work?

Give any supplement at least six to eight weeks of daily use before judging it, and up to three months for some products. Keep a simple weekly note: how easily your dog gets up, how far they walk happily, and how they manage stairs and the car. If you see no difference after a fair trial, it's reasonable to stop or switch. Our guide to how long joint supplements take to work covers what to expect week by week.

Safety, side effects and medication

Joint supplements are sold in the UK as complementary feeds, not veterinary medicines. They aren't licensed to treat any condition, and they don't replace pain relief your vet prescribes.

Most dogs tolerate them well. The most common side effect is a mildly upset stomach in the first week or two, which usually settles if you start with a half dose. See our full guide to joint supplement side effects.

Joint supplements are commonly given alongside NSAIDs such as meloxicam and alongside Librela, but always tell your vet what you're giving. Fish oils at high doses can affect blood clotting, which matters before surgery. Read our guides to joint supplements with medication, long-term NSAIDs and Librela.

When to see a vet instead

A supplement isn't the right first step if your dog:

• Is limping suddenly or can't put weight on a leg
• Cries out, yelps or resists being touched
• Is dragging a back leg, knuckling, or wobbly on their back end
• Has a swollen joint or is off their food
• Has stiffness that's getting worse despite rest

These can signal injuries or conditions that need diagnosis and treatment. Never give human painkillers; see what you can safely give a dog for joint pain. Our guide on when to take a limping dog to the vet explains what's urgent and what can wait, and our list of questions to ask your vet helps you get the most from the appointment.

The bottom line

The best joint supplement for your dog is one with published doses, ingredients that suit your dog's allergies, a format they'll eat every day, and realistic expectations behind it. For dogs with diagnosed arthritis, a vet-led plan with omega-3s, weight control and appropriate pain relief does more than any single supplement. For active and ageing dogs, a well-labelled daily supplement such as MedPaw Hip & Joint Chews or any of the products above is a reasonable part of keeping them moving comfortably.