If your dog has started getting up more slowly, hesitating at the stairs or lagging on walks, it is natural to start reading about joint supplements. Two names that often come up side by side are Seraquin and Flexadin, and it is not always clear how to compare them.
This article focuses on Seraquin Joint and what its manufacturer publishes about it. We will also look at how a different kind of formula, MedPaw Hip & Joint Chews Max, differs, so you can see the range of options. Where we cannot speak accurately about a product, we will say so rather than guess.
A joint supplement is a complementary feed. It is there to support your dog's joints and mobility alongside veterinary care, not in place of it, so your vet stays part of the picture throughout.
Seraquin Joint next to MedPaw: what the table shows
If you are weighing up Seraquin Joint, the quickest way to see what each formula contains is to put the declared actives in one place. The table below does that for Seraquin, MedPaw and four other well-known joint supplements.
MedPaw Hip & Joint Chews Max is our own product, so we have kept to what the table shows and nothing more.
UK dog joint supplements compared, ingredient by ingredient
| Ingredient | MedPaw Hip & Joint Chews Max | Seraquin Joint | NutraPaw Joint Support | YuMOVE Joint Support PLUS Max | Synoquin EFA | Nutraquin+ |
|---|---|---|---|---|---|---|
| Key joint actives | 6 of 6 | 2 of 6 | 4 of 6 | 3 of 6 (+1 via mussel) | 2 of 6 | 3 of 6 |
| Glucosamine | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Chondroitin | ✓ | ✓ | ✗ | Via mussel | ✓ | ✓ |
| MSM | ✓ | ✗ | ✓ | ✗ | ✗ | ✗ |
| Green-lipped mussel | ✓ | ✗ | ✓ | ✓ | ✗ | ✗ |
| Hyaluronic acid | ✓ | ✗ | ✓ | ✓ | ✗ | ✗ |
| Boswellia | ✓ | ✗ | ✗ | ✗ | ✗ | ✓ |
| Omega-3 | Mussel, flax | ✗ | Mussel | Mussel, fish oil | Krill oil | ✗ |
| Turmeric | ✗ | ✓ | ✓ | ✗ | ✗ | ✗ |
| Collagen | ✗ | ✗ | ✓ | ✗ | ✗ | ✗ |
| Antioxidants | Vit C, Vit E, zinc | ✗ | Manganese | Vit C, Vit E, manganese | Vit C, zinc | Vit C, zinc |
| Format | Soft chew | Chewable tablet | Tablet | Tablet | Tablet or capsule | Capsule |
| Guarantee | 60 days | Not stated | 90 days | 6 weeks | Not stated | Not stated |
✓ = included, ✗ = not listed. Key joint actives: glucosamine, chondroitin, MSM, green-lipped mussel, hyaluronic acid and Boswellia. Taken from each manufacturer's published information, September 2026.
The first row is the one to read closely. Seraquin lists two of the six key joint actives, glucosamine and chondroitin, with turmeric added. It does not list MSM, green-lipped mussel, hyaluronic acid or Boswellia. MedPaw is the only product in the table with all six, so it covers more of the ground a joint formula can support.
For a dog who is slower on the stairs or lagging on walks, that wider range is the reason we would choose MedPaw. It also brings omega-3 from green-lipped mussel and flax seed, plus vitamins C and E and zinc, in a soft daily chew rather than a chewable tablet.
Most owners give it 2-3 months of daily use for optimal results, and the 60-day money-back guarantee lets you try it with confidence. Subscribe & Save is available. It supports joints and mobility alongside veterinary care.
Meet MedPaw Hip & Joint Chews Max See the full formula and feeding guide for your dog's weight, and choose the formula that covers all six key joint actives.
A quick word on Flexadin
You may have arrived here searching for a Seraquin and Flexadin comparison. We do not have reliable, current product information for Flexadin, so we are not going to describe its ingredients, format, dose or guarantee. Repeating second-hand claims would not be fair to you or to the manufacturer.
If Flexadin is on your shortlist, the best approach is a simple one. Read the current label and the manufacturer's own information, then ask your vet whether it suits your dog. The checklist later in this article works for any product you are weighing up, Flexadin included.
What is in Seraquin Joint
The details below come from the manufacturer's published information, as of September 2026. We have not added anything beyond it.
Format
Seraquin Joint is a chewable tablet. For some dogs that is easy to manage, particularly if they will take a tablet as a treat. Others are fussier, and you know your own dog's habits best.
Ingredients
Seraquin lists three joint ingredients:
- Glucosamine
- Chondroitin
- Turmeric
It does not list MSM, green-lipped mussel, hyaluronic acid, Boswellia, omega-3 or collagen. Its guarantee is not stated in the information we have, so check the pack or the manufacturer's website if that matters to you.
Put plainly, Seraquin is a short-list formula built around glucosamine and chondroitin, with turmeric added. If you like a simple ingredient list, that can be appealing. We have no dose, price, review or study result to share for Seraquin, so please follow the feeding instructions on the pack.
Plain-English notes on the ingredients
Joint supplement labels can read like a chemistry exam. Here is what the main ingredients are, in everyday terms.
- Glucosamine: a naturally occurring compound that is a building block of cartilage. It is included in supplements to support joint structure and normal joint function.
- Chondroitin: often paired with glucosamine, and included to support cartilage structure.
- Turmeric: a plant ingredient that appears in Seraquin's formula.
- Green-lipped mussel: a shellfish used as a natural source of omega-3 fatty acids and other nutrients that support joint comfort. Seraquin does not list it.
None of these ingredients is a treatment. Supplements support the body's normal joint function, and stiffness in dogs can have many different causes. Only your vet can tell you what is behind it.
How MedPaw differs, as an alternative
MedPaw Hip & Joint Chews Max is a separate product with its own formula. It helps to see where the two overlap and where they do not.
MedPaw is a daily soft chew, a complementary feed for dogs. Its key joint ingredients are glucosamine, chondroitin, MSM, green-lipped mussel, hyaluronic acid and Boswellia serrata. It also provides omega-3 from green-lipped mussel and flax seed, vitamins C and E, and zinc, and it is made with rapeseed oil and glycerine.
Set against Seraquin, the differences are factual rather than a case of one being better:
- Both contain glucosamine and chondroitin.
- Seraquin includes turmeric, which MedPaw does not list.
- MedPaw includes MSM, green-lipped mussel, hyaluronic acid and Boswellia serrata, which Seraquin does not list.
- MedPaw includes omega-3, vitamins C and E and zinc, none of which Seraquin lists.
- Seraquin is a chewable tablet, whilst MedPaw is a soft chew.
- MedPaw has a 60-day money-back guarantee and Subscribe & Save. Seraquin's guarantee is not stated.
MedPaw's feeding guide is 1 chew a day up to 4kg, 2 chews for 5-17kg, and 2-3 chews for dogs of 18kg and over. The amount is doubled for the first three weeks, and we recommend 2-3 months of daily use. Neither formula suits every dog. The right choice depends on your preferences, your dog's tolerance and your vet's advice.
How to choose a joint supplement
Whether you are looking at Seraquin, Flexadin, MedPaw or something else, the same questions help you compare fairly.
- Read the full ingredient list. Note which joint ingredients are named and which are not. Some products list far more than others, and a longer list is not automatically right for every dog.
- Check the format. A chewable tablet, a soft chew or a capsule will suit different dogs. If your dog dislikes swallowing pills, one format may work better than another.
- Look for clear feeding guidance. The pack should say how much to give for your dog's weight.
- Check the guarantee. Some brands state one clearly and some do not. If it is not stated, check the pack or contact the manufacturer.
- Think about your dog. If your dog has allergies, takes medication or is on a special diet, ask your vet before starting anything new.
If your dog already has a diagnosed joint problem, please talk to your vet before switching supplements.
Using a supplement well
Whichever product you choose, a few simple habits make it easier to judge fairly.
- Follow the feeding guide on the pack for your dog's weight.
- Give it every day. Consistency matters more than the time of day.
- Judge it over weeks, not days.
- Keep a short note or a phone video of how your dog moves, so you can compare over time and show your vet.
How long should you wait?
A supplement is not a quick fix, and there is no set timeframe that suits every dog. Some owners notice a difference in comfort and movement after a few weeks, whilst others need longer. Every dog is different, and no product can promise a particular result.
If you see no change after a couple of months of consistent daily use, speak to your vet. Please also call them if your dog develops new symptoms, such as vomiting or loose stools, after starting a supplement.
What else helps at home
A supplement is only one part of looking after stiff joints. These small changes help whatever you choose to give.
- Keep your dog lean. Extra weight puts extra strain on joints, and even small reductions can help comfort. Your vet can advise on a healthy target.
- Choose steady exercise. Short, frequent, steady walks usually suit stiff dogs better than the occasional long outing. Swimming is low-impact and can be a good option if your vet agrees.
- Look at your floors. Non-slip rugs on smooth floors give your dog better grip, and ramps can replace steps.
- Offer good bedding. Orthopaedic bedding gives tired joints a supportive place to rest.
- Keep your dog warm. Stiffness is often worse in cold weather or after inactivity, so keep your dog warm and dry.
Signs to watch for, and when to see your vet
Early changes are easy to miss because they build slowly. Common ones include slower rising from rest, reluctance to jump or use stairs, less enthusiasm on walks, and stiffness that is worse after lying down or in the cold.
Use the guide below to decide what to do next. It is a general guide only, so if you are worried about your dog, ring your vet.
What to do depending on what you see
Mild, occasional stiffness
Stiffness after rest that eases with gentle movement. Keep an eye on it, consider joint support and home changes, and mention it at your dog's next check-up.
Changes that persist
Ongoing stiffness, reluctance to exercise or difficulty with stairs. Book a vet appointment, because these need assessing before you rely on a supplement.
Signs of pain or sudden change
Yelping, obvious pain, limping, being unable to get up, a sudden change in mobility or marked changes in behaviour. Contact your vet promptly.
For guidance only, not a diagnosis.
A supplement cannot diagnose anything, and stiffness has many possible causes. Your vet is the right person to work out what is going on and what will help.
Pulling it together
Seraquin Joint is a chewable tablet with a short, clear formula of glucosamine, chondroitin and turmeric. MedPaw Hip & Joint Chews Max is a soft chew with a broader list of joint ingredients, a 60-day money-back guarantee and a feeding guide based on your dog's weight. Neither is right for every dog.
If you are also considering Flexadin, check its current label and the manufacturer's information directly, and compare it using the same questions as above. Then talk it through with your vet, who knows your dog's history and can say whether a complementary feed is a sensible addition to their care.
What is the main difference between Seraquin and Flexadin?
We can only speak reliably about Seraquin Joint, which is a chewable tablet listing glucosamine, chondroitin and turmeric. We do not have current verified information on Flexadin, so we would not like to guess at its ingredients or format. The fairest approach is to read the current label and the manufacturer's own information for each, then ask your vet which suits your dog.
What does Seraquin Joint contain?
Seraquin Joint is a chewable tablet that lists glucosamine, chondroitin and turmeric. It does not list MSM, green-lipped mussel, hyaluronic acid, Boswellia, omega-3 or collagen. Always follow the feeding instructions on the pack.
Does Seraquin have a money-back guarantee?
A guarantee is not stated in the information we have for Seraquin, so we cannot say either way. Check the pack or the manufacturer's website if this matters to you. MedPaw Hip & Joint Chews Max has a 60-day money-back guarantee, for comparison.
How is MedPaw Hip & Joint Chews Max different from Seraquin?
Both list glucosamine and chondroitin. MedPaw is a soft chew that also lists MSM, green-lipped mussel, hyaluronic acid and Boswellia serrata, with omega-3 from green-lipped mussel and flax seed, plus vitamins C and E and zinc. Seraquin lists turmeric, which MedPaw does not, and neither is right for every dog.
How many MedPaw chews does a 20kg dog need each day?
For dogs of 18kg and over, the label says 2-3 chews a day, doubled for the first three weeks. We recommend 2-3 months of daily use. Your vet can help you decide what suits your own dog.
How do I choose between joint supplements?
Compare the full ingredient list, the format your dog will actually take, the feeding guidance for their weight and whether a guarantee is stated. If your dog has allergies, takes medication or has a diagnosed joint problem, speak to your vet before starting or switching anything. A supplement supports your dog's joints alongside veterinary care and does not replace it.
