I have been buying Nutramax Dasuquin with MSM for Hazel since October 2025, and before that she had never taken a joint supplement of any kind. She is a ten year old Golden Retriever, 64 pounds, and she got stiff in September 2025, the way an older dog does. When I mentioned at church what I was giving her, three different people asked why not Cosequin instead. I did not have an answer. So I sat down with the bag on my kitchen counter and the Cosequin listing open on my laptop and read both of them line by line, the way I used to proofread a bulletin. I have never bought Cosequin. Everything I say about it here comes from the printed panel, not from my dog.

Here is the short of it. Both products are made by Nutramax, so this is not one company against another. The real difference is on the ingredient panel. Dasuquin goes past standard glucosamine with avocado and soybean unsaponifiables, which the listing calls ASU, and the bag I buy also lists MSM at 800 mg. The Cosequin listing I read put glucosamine and chondroitin at the center of the formula and carried no ASU on the panel that I could find. That makes Cosequin the simpler product and Dasuquin the more crowded one. Whether more ingredients is better for your dog is a question for your veterinarian, not for me. I can tell you what is printed and I can tell you what I saw in Hazel. That is the whole of it, and I will keep saying so all the way down this page.

Dasuquin with MSMCosequin
Core ingredientsGlucosamine hydrochloride 900 mg and sodium chondroitin on the panelGlucosamine and chondroitin at the center, same as most Cosequin formulas
MSM800 mg printed on the panel of this bagNot on the Cosequin listing I read, though separate Cosequin formulas carry it
ASU (avocado and soybean unsaponifiables)Listed on the panel, and the listing makes a point of itNot on the panel of the listing I read
Things to keep track ofGlucosamine, chondroitin, MSM, ASU, plus whatever else is in the bowlTwo main ingredients, fewer moving parts
If your dog has never had a supplementA lot to start with, and weeks before I noticed anythingA simpler first step you can add to later
FormBeef soft chew, 84 count bagSoft chews as well, in more than one formula
Who makes itNutramaxNutramax

How I Compared Them

I want to be plain about the method, because it is thin. I own one of these products. I have fed it to Hazel every morning since October 2025 and I have watched her get up off the kitchen floor and go up the two brick steps to the back porch. I do not own the other one and I have never fed it to a dog in my life. So this is not two dogs side by side on a rug somewhere. It is a bag on my counter against a listing on a screen, ingredient by ingredient, plus a stack of notes I keep in a notebook about what I have seen in one ten year old Golden Retriever.

That means a few things are missing, and I would rather tell you myself than have you find out halfway through. I cannot tell you how a dog does on Cosequin over a year, because I have never watched one. I cannot tell you which of these your veterinarian would pick, because I am not one and your dog is not mine. I am not going to quote prices, because I have never bought the Cosequin and the price on the other one moves around anyway. What I can do is read a panel out loud and tell you exactly what I noticed in my own kitchen. That is what this is, and it is all it is.

A hand holding out a soft chew at counter height while a large dog takes it gently in a home kitchen.

What Both Labels Have in Common

It surprised me that the two come out of the same company. The Dasuquin listing says Nutramax has been in pet health for over twenty five years, and I have no reason to doubt it. That matters to me for a plain reason. When two products share a maker, you are not choosing between brands you trust. You are choosing between formulas, and that is a much smaller question than the front of the bag makes it look.

Both are soft chews, and both start in the same place, with glucosamine and chondroitin. If your dog has never had a supplement, either one sits in the same family of products and neither is a strange choice, assuming your veterinarian is on board with the idea in the first place. What you want to look at is what gets added after those first two ingredients. That is where they part company. As far as I can tell from reading the panels twice, it is the only place they part company.

One more thing they share. Neither of these is a medicine. They are supplements, sold without a prescription, sitting on a shelf beside a lot of products making louder claims than either of these two makes. I read the panel and I skip the front of the bag. The front is written by somebody selling something. The panel has to list what is actually inside.

Where Dasuquin Wins

The first difference is ASU. The panel on the bag lists glucosamine hydrochloride at 900 mg, MSM at 800 mg, sodium chondroitin, and avocado and soybean unsaponifiables. I am not going to tell you what ASU does inside a dog, because I do not know and the label does not explain it to me. What I do know is that the Cosequin panel I read did not carry it, and the Dasuquin listing makes a point of it. If you are going over labels with your veterinarian, that is the line to put your finger on and ask about.

The second difference is the MSM, 800 mg printed on the panel of the bag I buy, and MSM is not on the Cosequin listing I read. Cosequin does sell formulas that include MSM, so read the bag in front of you and not the photo on a screen. The third difference is not on the panel at all. The listing says more veterinarians recommend Dasuquin than any other brand. That is the seller's claim, printed by the people who make it. I have no way to check it and I am not going to repeat it as though I did. What I can tell you is what happened in my own kitchen, and I will get to that.

What I Liked

  • Lists ASU on the panel, which the Cosequin listing I read did not carry
  • 800 mg of MSM printed on the panel of the bag I buy
  • Hazel takes the beef soft chew from my hand at breakfast with no coaxing
  • No pill to hide in her food, which matters with a dog who checks her bowl

Where It Falls Short

  • More than the plain glucosamine chews I used to see at the feed store
  • Weeks, not days, before I noticed anything, and I cannot prove it was the chews
  • A bag goes quickly at a 64 pound serving
  • The chews dry out and go hard if the bag is not sealed tight

Where Cosequin Wins

Here is where I stop defending what I buy. Hazel gets three things in her mouth every day. A Dasuquin chew at breakfast, fish oil pumped over her kibble, and a mussel bite in the evening after the short walk. That is a lot of ingredients stacking up, and nobody has told me they do not overlap with one another. A formula with fewer parts is easier to walk through with a veterinarian, and it is easier to reason about if something ever does not agree with your dog. Fewer ingredients means fewer suspects when you are trying to work out what changed.

The other place Cosequin wins is the beginning. In September 2025 I was standing in my kitchen with a stiff dog and no experience with any of this at all. A simpler product is a saner first step, and you can add to it later if your vet agrees. I went the other way and I am not sorry, but I had a reason. I wanted to change one thing at a time with Hazel, and the more complete formula was that one thing. That was my choice for my dog, not a rule for anybody else reading this. Cosequin also comes in more than one formula, so read the panel on the bag in your hand rather than the one on a screen.

The difference between these two is on the printed panel. One lists ASU and MSM. The listing I read for the other did not. That is the whole comparison, and everything else is the front of the bag talking.

If your dog has started stopping at the bottom of the steps

Hazel did that in September 2025, one morning, and it is what sent me looking. Dasuquin is the one I have bought every month since October 2025 and the only one I can tell you about from my own kitchen. Ask your veterinarian about it first, the way I asked mine.

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A large older dog pausing at the top of two worn brick steps that lead down to a fenced backyard.

What I Noticed With Hazel, and What I Cannot Prove

I keep this part short because it is the part people oversell. Hazel is ten. She is slower than she was at seven and nothing I have bought has changed that. What changed, a little, is the morning. Somewhere around seven or eight weeks into the chews she stopped taking so long to get up off the kitchen floor. Cold damp mornings are still her stiffest, and she still pauses at the bottom of the two porch steps before she climbs them. With three supplements in her day I cannot tell you which one did what, or whether it was any of them. I have said that plainly every time someone has asked me.

The chew itself is easy. Beef flavor, soft, and she takes it from my hand at breakfast without my hiding it inside anything else. What I do not love is the bag. It reseals, and if I am careless the last few chews go dry and hard and she turns her nose up at them. I squeeze the air out and press the seal down its whole length now. The other thing is the serving size for a 64 pound dog. A bag goes faster than I would like, and I feel that more than I feel most things I buy for her.

The One Thing I Would Do Differently

If I could go back to September 2025, I would have written down what Hazel was doing before I started anything, in plain words, on paper. How long it took her to get up off the floor. Whether she climbed the porch steps without stopping halfway. How she moved on a damp morning before her breakfast. I did not do that, so now I am leaning on memory, and memory is generous when you are hoping something worked. Whoever is reading this, do that part first. It costs nothing and it will tell you more in two months than any listing can.

Who Should Buy Which

If you want the formula with ASU and MSM, and your veterinarian is fine with it, Dasuquin is the one I can actually speak to. I have bought it every month since October 2025 and I have no plans to stop. It suits an owner who is willing to wait weeks instead of days, who does not mind a bag that empties quickly at a large dog's serving, and who went looking for something past plain glucosamine because a plain chew did not seem like enough to ask about at the appointment.

If you are starting from nothing, or your dog is already on other supplements and you would rather have fewer ingredients to keep track of, Cosequin is the simpler choice, and simple has real value. If you are the sort of person who wants to change one thing at a time and see what happens, start smaller and add later with your vet's blessing. I cannot tell you how a dog does on it, because I have never bought it. I can tell you both come from the same company and neither one is a foolish thing to bring up at your next appointment.

Before You Buy Either One

I am not a veterinarian, a vet tech or a trainer. I am retired, after a long stretch working in a church office, and I have a dog I love and a habit of reading panels. Talk to your own veterinarian before you start a supplement or change a routine, and especially if your dog takes medication or has a diagnosed condition, because that is a conversation I am not qualified to have with you. Do not take a serving from me. The amount is on the label for your dog's weight, and your vet is the one to confirm it. And do not expect a chew to undo an old dog's birthday. It did not for Hazel.

The one I have kept buying, thirteen months in

I am not going to tell you it will do for your dog what it may or may not have done for mine. I will tell you I have bought it every month since October 2025 and I have not stopped. Ask your own veterinarian first, the way I asked mine, then decide.

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