Myos Pet is a wellness-focused pet brand dedicated to improving vitality of dogs and cats through scientifically backed, natural supplements. Specializing in muscle support, mobility, and recovery, Myos Pet uses Fortetropin®, a clinically studied ingredient derived from fertilized egg yolk, to promote muscle growth and reduce muscle loss in pets of all ages. Whether supporting aging pets, helping active animals recover, or aiding post-surgical rehabilitation, Myos Pet products are trusted by veterinarians and pet owners alike. With a commitment to research, quality, and real results.
MYOS Pet (myospet.com) has 93 customer reviews on Five Star Index, with an average rating of 4.4 out of 5.
Also known as
myospet.com
Website
myospet.com
Category
Pet Stores
Location
Cedar Knolls, New Jersey
Listed on Five Star Index
2026
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The company replied to 1% of reviews.
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Most recent review: October 2026.
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My senior dog loves Myos! Although he is a lab mix, he is VERY picky. I noticed he has put on some weight since starting this supplement (in a good way)! Myos has supported my dog in a few ways. Overall to help maintain and build muscle, but more recently to help with muscle wasting that is associated with a treatment he is undergoing. It’s not magic, we still have to work on exercise and physical therapy. But I think it’s a played a big role in supporting him and allowing him to zoom around like he’s still a puppy.
BM
B M.
My dog was showing improvement
My dog was showing improvement. But Myos have stopped supplying the UK now with zero updates or if they will supply in the future. Either try import it yourself try find a shop you trust.
LL
Lisa L.
It really works,
Your product really helps my fur babies. Thank you
CU
customer
I have 2 dogs with Cushings and muscle…
I have 2 dogs with Cushings and muscle loss is one of the problems they encounter. Been giving them myos for about 6 months but I haven't noticed a difference. One of my dogs can barely walk now but I am afraid to stop the supplement. Thanks
PB
Pam B.
This is helping my dog so much
This is helping my dog so much. She is able to get up and down. She is able to run and roll in the grass again. This product is so much better than what the vet wanted to give her. My sister is trying this product for her 2 dogs
SA
Samuel
MYOS Corp Consumer Bait and Switch
The MYOS corporation sells quality products, unfortunately it also failed to honor a 25% Father’s Day discounts on Amazon - though customer service admitted to advertising the 25% discount on the Amazon website as well as other venues. This form of bait and switch isn’t okay as the other sites charge $10.00 shipping. Amazon Prime doesn’t as consumers pay a fee for free shipping. I’m reporting this after giving MYOS customer service repeated chances to escalate my reasonable complaint for supervisor review and response. To be clear, I even have a screen shot where the company admitted they listed Amazon as part of their Father’s Day sale venues then failed to honor their offer.
WA
Warren
NO favorable results from Myos Canine Muscle Formula, and a company with suspect, greedy values
We gave Myos Canine Muscle Formula (Vet Strength) a full year, hoping that we would eventually see an improvement in our dog's hind-end muscle weakness. Her condition was muscular, not neurological, and we wanted to believe that Myos might help strengthen her muscles and improve her quality of life.
Sadly, our dog passed away before we could ever attribute any improvement in her rear-end weakness to Myos. Aside from this issue, she was otherwise in excellent health.
Over the course of that year, we spent hundreds—if not a thousand dollars on Myos Canine Muscle Formula. Unfortunately, it was only after our dog's passing that we discovered what we believe to be the true character of the company behind the product, Myos.
When we notified Myos that our dog had died and asked whether we could return one unopened canister of Myos Canine Muscle Formula, for a refund, we were told no. The reason given was that the product had been purchased more than 30 days earlier, making it ineligible under their return policy. I understand and respect that that policy exists for a reason. However, what disappointed us was the company's unwillingness to exercise any discretion or compassion in light of the circumstances. Given the amount of business we provided Myos, over the years, it would have been meaningful if Myos had chosen to make an exception, of a refund, for a single unopened canister. Instead, Myos simply reiterated their return policy—twice. In my opinion, this response spoke volumes about Myos’ corporate values, customer commitment, and company culture. Had this product been purchased through Chewy, a company with which we now intend to concentrate our future purchases, I am certain the outcome would have been different. Based on our past experiences, Chewy would have refunded the purchase, expressed sympathy for our loss, and perhaps even suggested donating the unopened product to a shelter. In fact, CHEWY did just that (and sent us a bouquet of flowers, as an expression of their sympathy). Myos, unfortunately, demonstrated a very different approach, they quoted cold-blooded rules.
What did we learn from this experience?
First, we will not do business with Myos again.
Second, we continued purchasing Myos Canine Muscle Formula, year after year, because we hoped that, eventually, we would find the right dosage or duration of Myos Canine Muscle Formula, and finally see meaningful results. Looking back, that expectation may have been unrealistic. Most importantly, we learned that Myos is not the type of company that, in our experience, chooses compassion over policy when faced with exceptional circumstances. We leave as former customers of Myos, feeling disappointed and undervalued, and never to return to Myos, again.
One final note: if you have a senior dog, I encourage you to consider enrolling your senior dog in the Dog Aging Project, a remarkable research initiative led by the University of Washington and Texas A&M University. The project is helping researchers better understand aging, health, and longevity in dogs. Given that many of Myos’ customers are owners of senior dogs, it would be wonderful to see the company support efforts like the Dog Aging Project by contributing a portion of its proceeds to canine aging research. Such a commitment would demonstrate a level of community engagement and customer-centered values that, unfortunately, we did not experience, firsthand, from Myos.
AP
Amanda P.
4 year old Performance Boston-Myos for Muscle Repair
I am a licensed Veterinary Technician. I breed and do performance sports with my Boston terriers. My 4 year old male is in constant motion and I worried about his muscles (which he has always been absolutely packed with) being able to repair properly with all his sports and antics. I started him on Myos Muscle Formula Plus Vet Formula and he likes to taste and is looking and feeling better than ever.