VetriScience GlycoFlex Stage II Moderate Strength Joint Support Bite-Sized Dog Chews, 120 count
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GlycoFlex II Hip and Joint Supplement for Dogs represents the second stage of VetriScience Laboratories’ comprehensive line of joint care supplements. Recommended by veterinarians, this formula is ideal for dogs that are slowing down or showing signs of fatigue or weakness in their hind quarters. Glyco Flex II includes perna canaliculus and glucosamine for joint structure as well as MSM for discomfort. Formulated for active dogs or lap dogs, Glyco Flex II helps alleviate joint discomfort associated with day to day activities.
Key Benefits- Veterinarian approved supplement containing perna, glucosamine, MSM, DMG, and antioxidants for advanced joint support
- Ideal for dogs that are slowing down or showing signs of fatigue or weakness in their hind quarters as well as active dogs, competitive dogs and dogs that are recovering from orthopedic surgery
- Helps alleviate joint discomfort associated with day to day activities by supporting joint and connective tissue functions
- Provides preventative support for dogs that are extremely active by helping keep joints cushioned and lubricated during activities that may put stress on them
- Highly palatable easy to feed liver-flavored bite sized chews are great for all weight ranges
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Item Number57613
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LifestageSenior, Adult
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Breed SizeSmall Breeds, Medium Breeds, Large Breeds, All Breeds
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Food FormSupplement
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Product FormSoft Chew
Active Ingredients: (Per 2 Chews) Glucosamine HCl (Shrimp and Crab) (750 mg), Perna Canaliculus (Glycomega Brand Green Lipped Mussel) (600 mg), Methylsulfonylmethane (MSM) (500 mg), N,N-Dimethylglycine HCl (D mg), (100 mg), Manganese (as Mn Proteinate) (10 mg).
Inactive Ingredients: Brewers Yeast, Canola Oil, Chicken Liver Flavor, Citric Acid, Glycerin, Mixed Tocopherols, Propionic Acid, Proprietary Blend (Maltodextrin, Sodium Alginate and Calcium Sulfate), Rosemary Extract, Silicon Dioxide, Soy Lecithin, Vegetable Oil, Whey.
Initial feeding period (4 - 6 weeks):
- Up to 30 lbs: 1 chew daily
- 31 - 60 lbs: 2 chews daily
- 61 - 100 lbs: 4 chews daily
- 101 lbs and over: 5 chews daily
Maintenance:
- Up to 30 lbs: 1 chew every other day
- 31 - 60 lbs: 1 chew daily
- 61 - 100 lbs: 2 chews daily
- 101 lbs and over: 3 chews daily
If giving more than 1 chew daily, divide between morning and evening feedings.
Why should I include vitamins & supplements in my pet’s diet?
Most commercial pet foods include baseline vitamins and nutrients, but some may not have the adequate amount to suit your pet’s exact health needs. Like in humans, vitamins and supplements can help support your pet’s long-term health, regulating everything from digestion to muscle growth. Consult your veterinarian to determine the best vitamins and supplements for your furry friend.
How often should I give this supplement to my pet?
It is recommended to give the suggested dosage based off your pet’s weight. Please refer to the Feeding Instructions tab and consult with your veterinarian for more information.
Is this supplement safe to use with the medication my pet is currently taking?
If your pet has a medical condition and is taking other medication, we recommend consulting with your veterinarian to ensure that this supplement is safe to use.
My pet is allergic to certain ingredients, will this product be safe to use?
For a complete list of ingredients, click on the 'Nutritional Info' tab, next to the 'Description' tab, just under the product photos. If you are unsure about the safety of this product for your pet, we recommend consulting with your veterinarian.
Does this product come in other product forms?
For a complete assortment of products by the manufacturer of this supplement, click on the link next to the item name at the top of the page. You can also find an assortment of supplements across all product forms on our page.

Clinically Proven Joint Support
GlycoFlex gives your dog comprehensive joint support for mobility, flexibility and everyday comfort in the form of a delicious treat that she'll actually want to eat. Available in both tablets and bite-sized chews, GlycoFlex is recommended by veterinarians to provide joint support at every stage of your pet's life.


Formulated to Support a Lifetime of Healthy Joints
GlycoFlex 1 s a great proactive joint supplement for growing and active dogs.
GlycoFlex 2 has higher levels of glucosamine and is recommended for adult or maturing dogs.
GlycoFlex 3 is an extra-strength formula for dogs in need of maximum joint support.
GlycoFlex Classic is an introductory hip and joint health supplement that supports proper joint and connective tissue growth and function in dogs of all ages.
GlycoFlex Plus provides advanced support to help cushion joints, promote cartilage building and alleviate discomfort caused by normal daily activities.
Time-Tested Ingredients
GlycoFlex uses time-tested active ingredients to provide support for joint mobility, flexibility and overall comfort. Perna canaliculus, or green-lipped mussel, is found in every formula to help maintain healthy connective tissue. Glucosamine helps build healthy cartilage, and MSM is included as a necessary ingredient for forming connective tissue in the joints.

About VetriScience
As the makers of GlycoFlex and an extensive line of pet supplements, VetriScience Laboratories is a leader in the pet health industry. For over 40 years, VetriScience has led the way by providing exceptional and innovative supplements created for the health and well-being of companion animals. They are committed to using only pure and highly researched ingredients to produce quality products that are safe and effective.

Customer Reviews
90% Recommend
90% of reviewersrecommend this product
You've Already Reviewed This Item
164 Reviews
Showing 1-10 of 164 Reviews
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Has been great for my Girls
By frank on Dec 14, 2020
I have two felmale dogs. Amber is 11 years old and she had been having problems every other day with limping not as active as she used to be. Has been going on for about a year just about every week. One of our deer friends (Michelle) ordered Glycoflex 2. I started both of my pets on Glycoflex with the bag my friend gave us and with in that bag of Glycoflex she stop limping and was more active. Since then i have ordered three times. There is a bayou behind our house which i walk my dogs 2 times a day for about 3/4 mile each walk. Both of them are back to chasing the birds with no problem. I recommend this product, try it, if it is not for your pet, what do you have to loose, if it helps, great I have two felmale dogs. Amber is 11 years old and she had been having problems every other day with limping not as active as she used to be. Has been going on for about a year just about every week. One of our deer friends (Michelle) ordered Glycoflex 2. I started both of my pets on Glycoflex with the bag my friend gave us and with in that bag of Glycoflex she stop limping and was more active. Since then i have ordered three times. There is a bayou behind our house which i walk my dogs 2 times a day for about 3/4 mile each walk. Both of them are back to chasing the birds with no problem. I recommend this product, try it, if it is not for your pet, what do you have to loose, if it helps, great. Oh, Chewy has been great on shipping quickly, Thanks Chewy! … more
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Picky Dogs Will Eat
By arc829 on Nov 4, 2020
Before GlycoFlex, I tried to give my dogs Dasuquin chews, and they simply wouldn’t eat them! They didn’t have a strong scent, and they were quite hard, so I ended up just having to smash them up in my dogs food so they would eat them. After I finished that bag, I decided to try GlycoFlex, and it has worked out so much better! My dogs readily eat these, and they’ve continued to eat them well for the past 6 weeks or so. As for their effectiveness, they do what I need them to. My dogs are older (8 and 10), and they are both starting to slow down just a bit. I just wanted a supplement that would allow them to stay active and comfortable for as long as possible, and, so far, GlycoFlex has been doing Before GlycoFlex, I tried to give my dogs Dasuquin chews, and they simply wouldn’t eat them! They didn’t have a strong scent, and they were quite hard, so I ended up just having to smash them up in my dogs food so they would eat them. After I finished that bag, I decided to try GlycoFlex, and it has worked out so much better! My dogs readily eat these, and they’ve continued to eat them well for the past 6 weeks or so. As for their effectiveness, they do what I need them to. My dogs are older (8 and 10), and they are both starting to slow down just a bit. I just wanted a supplement that would allow them to stay active and comfortable for as long as possible, and, so far, GlycoFlex has been doing just that. My 10 year old pup does have issues with patellar luxation, and I have seen improvements in his gait after working on strength exercises and supplementing his food with GlycoFlex. I can’t say I’ve seen any crazy improvements in their mobility, but both of them were already getting around well before I started them on GlycoFlex, so I didn’t expect to see any huge changes. I just use this supplement as more of a maintenance and preventative supplement. … more
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Amazing Difference
By Sammy on Jan 4, 2021
In just over 3 weeks of giving our 13 year old dog 1 chew everyday, the improvement in her mobility is definitely visible. She prances more than she has in years, and she goes up and down stairs smoothly. We are truly impressed.
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Helps with my dogs sore joints!
By muttmom on Dec 6, 2020
Overall these supplements are great! Although my dog won’t eat them directly, she will eat them if I break them up into pieces in her food. Besides that though these supplements really help her joint pain. Definitely recommend!
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VetriScience GlycoFlex
By JayeO on Aug 10, 2020
My mastiff rescue is 18 months and 170 lbs, he has hip dysplasia and he just blew out his ACL, these are working so well for his hips! I'm sure they will help once he has surgery and he will most likely get arthritis in his knees.
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Good product but somethings not right...
By Tamara on Aug 10, 2020
We love this product for our cats. I normally purchase this from our local vet, but it was easier to add it to my monthly subscription with Chewy. However, when I opened the packaging the “treats” were extremely dry. I have had multiple of these bags from my vet and never experienced this issue. I bought two from chewy so I am interested to see if this was an isolated issue or not.
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Caused a Reaction
By RW626 on Jun 20, 2020
This is a brand I have confidence in. Their Compsure Chews are miracle workers!!! Unfortunately, this chew made my dog vomit within 15 minutes of taking it. She vomited the first time; I waited several days to try again, and she vomited that time as well.
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Really Helps an old dog!
By John on Jul 6, 2020
Our 11 year old with sore joints is happier and moves around much better after starting this. She also likes the taste and is much better tolerated than the pill form!
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She won't eat it
By AllieMae on Jun 12, 2020
I got the chewable form thinking it would be easier for her to take it. My great dane that loves anything edible, won't eat them. I've put them in cheese and peanut butter and she spits them right out.
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Picky dog loves them
By Cowboygroomer on May 16, 2020
We were using the Glycoflex tablets but one of our dogs didn't like the texture. We switched two large breed dogs to these chews and since they only need two a day it is still cost effective to feed these. Now we have two dogs who are excited to take their supplements in the morning!