MYOS Canine Muscle Formula Dog Supplement

Rated 4.2727 out of 5 stars
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MYOS Canine Muscle Formula Dog Supplement, 12.7-oz slide 1 of 8
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MYOS Canine Muscle Formula Dog Supplement, 12.7-oz slide 1 of 8

$84.99Chewy Price
$89.99Chewy Price
$80.74Autoship Price
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About This Item

  • Helps to improve muscle mass and health in dogs.
  • Essential amino acids support shiny skin and coat.
  • Can help older dogs increase physical activity.
  • Contains a patented, bioactive ingredient derived from fertilized egg yolks.
  • Helps improve cognitive health.

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Top IngredientsFortetropinActive Ingredients: Green Lipped Mussel 760mg, Glucosamine HCl (Shellfish) 600mg, Chondroitin Sulfate (Bovine) 300mg....BIOVAFLEX Egg Shell Membrane, Hyaluronic Acid, Bosweilia Serrata Extract...
Breed SizeSmall Breeds, Medium Breeds, Large Breeds...All Breeds, Extra Small & Toy Breeds, Small Breeds...Large Breeds, Giant Breeds
LifestageAdult, SeniorAdult, Puppy, SeniorSenior, Adult
Health FeatureMuscle Care, RecoveryHip & Joint SupportHip & Joint Support
Food FlavorN/A
Special DietN/AGluten FreeGluten Free

Questions & Answers

16 Customer Questions

Do you sprinkle this over the dry kibble.
Answer by ChewyJun 23, 2021
This supplement can be added on top of food (dry or wet) or alone as a snack.

is this good for shepherds
Answer by ChewyNov 09, 2020
This supplement is a great option for all breeds. We always recommend speaking to your veterinarian prior to changing your little one's routine. Your pet's vet is your best ally in managing any existing health conditions and sensitivities.

Should I start at a lower amount and build up if my dog needs approximately four scoops a day? If they are sensitive to diet change can this product cause diarrhea?
Answer by ChewyJul 18, 2020
When feeding your pet supplements, it is recommended to follow the feeding instructions as directed for full effect. Since not all pet's react the same to a specific supplement, some pet's might have a reaction while others don't. We urge you to speak with your vet whenever starting a new supplement for the safest option.

How long will the 6 oz bag last?
Answer by ChewyJun 27, 2020
There is approximately 120 scoops in the 12.7-ounce container and 60 scoops in the 6.35-ounce pouch. The duration of how long this supplement will last depends on the dosage serving for your individual pet.

ReviewsWrite a Review

Rated 4.2727 out of 5 stars
44 Reviews
Would recommend to a friend

44 Customer Reviews

Rated 4 out of 5 stars
By dogmomof3 on Apr 8, 2022

My dogs love it.

I bought this for my GSD to try to help him with muscle loss due to an injury & degenerative health problem. I'm not sure if it's helping him like I hoped it would but I think it might be helping slow down his inevitable muscle loss. I just ordered a third bag of this but even after the first bag, he refused to eat his dog food without it on top or mixed in. My other two dogs like it alot too if I put it on their food.

Rated 5 out of 5 stars
By Bizzy on Mar 24, 2022

Excellent product!

I have been using Myos on my 14yr Lab. She is weak in her hind end and decided to give this product a try to help her build muscle. I have been using it in her food for about a year, and yes it does help. My Vet has seen an amazing change in her strength. In addition she likes the flavor. It’s a little on the pricey side, but if it helps my girl, I’m all in!

Rated 2 out of 5 stars
By SuperSenior on Dec 14, 2021

Not worth the money

No difference seen. However I have an n= 1 and no controls such as him not on Myos. He is a very active now 15 year old Aussie that has been on it for 6 months. Yes he is 15, he had a stroke at the beginning of using it, he plays fetch regularly, and goes to physical therapy weekly. Physical therapy took 6-8 months to show a true difference and I agree with his neurological deficits from his stroke it is hard to assess if Myos could or is helping. Now as a cell & molecular scientist, don't waste your money. Only a study with TPLOs and not super seniors. This is a simple protein it is not a cure all some reviews claim. Protein stability is notoriously difficult albeit somewhat worked out in lots of applications, but a canine supplement that is room temperature stable? Then your going to drop this protein in a vat of acid (stomach) and still get it functionally delivered to the tissues and cells of choice? As a cell and gene therapist we are still working that out and it costs a whole lot more! Do I still continue to buy it because I will do literally anything for him, yes. But it's for some silly emotional reason not logical that it is working or worth the money just in case it maybe helps a smidge.

Rated 2 out of 5 stars
By Beck on Dec 9, 2021

I was told great things about it, but in practice I didn't find it very useful

We train agility and I have had issues with maintaining muscle mass on my border collie. I have experimented with tweaking food amounts and have decided that he needs more protein but not more calories so I tried this. There was no discernible difference in his muscle mass between the start and end of the package. I have since decided not to reorder and to instead focus on switching him to a lower carb, higher protein diet as I experimented with that and found it to work almost immediately.

Rated 5 out of 5 stars
By Vera on Dec 24, 2021

Vet recommended

Our Shepard/Husky mix is over 14 yrs old, has arthritis and seemed to be losing some muscle mass. Vet recommended this and she chows her food with this sprinkled in. She seems to be more active and moving around better. So far it's only been a week so it's hard to say if there has been muscle gain but definite improvement in her general activity.

Rated 1 out of 5 stars
By Disappointed on Oct 14, 2021

Really need to upgrade the packaging

Just received the product and have yet to try it but as several reviewers have stated the packaging needs attention by someone in the company that cares. The ziplock fails after the first opening due to the particulates of the product inside. Be prepared to transfer it to a different air tight container upon receipt. For the price it would seem they could put it in a screw top container and save favor with it’s customers. I purchase several supplements for my dogs. Not one comes in a ziplock bag.

Rated 3 out of 5 stars
By PasoPerson1 on Aug 23, 2021

Too early to tell

This product was recommended by my veterinarian for my 14.5 year old Samoyed. He has progressive weakness in the rear, and she thought it might help him, as other clients have tried it with some good results. He has been on it for a couple of weeks - no big changes yet. The manufacturer says that it can take 6-8 weeks to see results, so I am still hopeful. On the plus side, he doesn't mind it in his food, and there have been zero GI impact. (a good thing with a heavy coat dog!)

Rated 2 out of 5 stars
By DoggyMom on Aug 17, 2021

Cheap Packaging a Problem

I bought this on the recommendation of my dog's physical therapist. Frankly, I can't tell if it's benefitting her at all. She is deteriorating but perhaps this product is slowing that down. No way to tell. HOWEVER, I am extremely disappointed with the lousy packaging. As another rater mentioned it has a seal like a Ziploc bag. But the seal comes off the bag quickly. My most recent experience was that it failed in less than a week. So I have to transfer the powder to another air-tight container. Given the price of this product it seems to me they should definitely provide high quality packaging. To sell what they tout as a high quality product in such cheap, low-quality packaging makes no sense at all. It's causing me to wonder about their manufacturing control as well and whether I should continue to purchase it.

Rated 5 out of 5 stars
By works on Dec 13, 2021

does what it says

i have a 14 year old dog that had no muscles at all. but this is putting some muscles back on her.

Rated 5 out of 5 stars
By Katherine on Aug 2, 2021


I ordered this for my 11 year old Doberman. Within the past few months, he's stopped jumping on the bed and has a difficult time getting in the car, so after reading the reviews, I thought I would try it. I ordered the small bad to make sure he could tolerate it and he does. He loves the taste. He hasn't been on it long enough to notice a difference, but I ordered the large bag this time. Hoping to see results soon.