On Sale

VetriScience GlycoFlex Stage III Ultimate Strength Joint Support Bite-Sized Dog Chews, 120 count

  • Was:


  • Price:

    $28.81 FREE 1-2 Day Shipping over $49

  • You Save:

    $25.79 (47%)

In stock
- Quantity +


Clinically Proven GlycoFlex III Hip and Joint Supplement for Dogs represents the third stage of VetriScience Laboratories’ comprehensive joint support program designed to maintain comfort and mobility through all stages of your dog’s life. Recommended by veterinarians for over 30 years, this formula offers higher levels of glucosamine, MSM and perna canaliculus for superior joint care. Glyco Flex III is suggested for active and competitive dogs to maintain top form, but also provides support for dogs showing signs of aging and discomfort as well as those with limited mobility after orthopedic surgery.

Key Benefits

  • Veterinarian approved canine joint support with perna, glucosamine, MSM, DMG, and antioxidants for advanced joint support
  • Recommended for dogs with a maximum need to joint and connective tissue support, joint and connective tissue support, geriatric and working dogs as well as to support normal recovery after orthopedic surgery
  • Great for dogs of all weight ranges to maintain comfort and mobility through all stages of your dog’s life
  • Clinically proven to increase hind leg strength in dogs by up to 41% in 4 weeks
  • Bite-sized soft chews are naturally flavored with real chicken so it’s easy to keep even picky pups healthy

See all items by VetriScience

  • Item Number
  • Food Form
  • Lifestage
    Senior, Adult, All Stages
  • Made in
    United States
  • Supplement Form

Nutritional Info


  1. Active Ingredients Per 2 Chews: Glucosamine HCl (Shrimp and Crab) (1000 mg), Methylsulfonylmethane (MSM) (1000 mg), Perna Canaliculus (Glycomega Brand Green Lipped Mussel) (600 mg), N,N-Dimethylglycine HCl (DMG) (100 mg), Dl-Alpha Tocopheryl Acetate (Vitamin E) (50 Iu), Ascorbic Acid (Vitamin C) (24 mg), Manganese (as Mn Proteinate) (10 mg), Grape Seed Extract (5 mg), L-Glutathione (2 mg), Selenium (as Sodium Selenite) (0.002 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 (Glycomega Is A Trademark of Aroma New Zealand Ltd.).

Feeding Instructions

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 period:

  • 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.

Pet Lovers Also Bought

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.

VetriScience GlycoFlex
Lifetime of Healthy Joints

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.

Time-Tested Ingredients

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.

Shop VetriScience

About VetriScience

Customer Reviews

VetriScience GlycoFlex Stage III Ultimate Strength Joint Support Bite-Sized Dog Chews is rated 4.7 out of 5 by 295.
Rated 5 out of 5 by from GlycoFlexIII has astronomical benefits for aging dogs Six years ago, my husband and I adopted a female Black Lab who had been raised with and treated as a fat belly pig. Dutch was morbidly obese, was suffering from poor nutrition, was very crippled by severe arthritis in both hips and four legs and suffered breathing problems. Her previous owner had taken Dutch to the shelter because she could no longer walk. She was set for euthanizing because at age 7 and in terrible health, she was "unadoptable." It was obvious that Dutch had never had a good and loving home so it became our mission; to give to her a loving and caring "forever home." Once on our farm, my husband put her on a nutritious and slimming diet. I began giving her three GlycoflexIII chews each day and established a good health program at the local clinic. One year later, she was a different dog having lost more than 50 pounds. She was able to walk, run and play with our Jack Russell puppy. She is happy and beautiful and in love with life and this family. We continue to give to her 3 GlycoFlexIII chews daily to keep her mobility good. I doubt that Dutch would be alive today without our loving care or without the wonderful effects of the GlycoFlexIII chews. To say "they work" is an understatement. For Dutch, "they are a miracle over the counter drug" that keeps her limbs and her hips working without pain. Thank God for Chewy and for GlycoFlexIII.
Date published: 2017-02-17
Rated 5 out of 5 by from New energy for my elder schnauzer My elder miniature schnauzer Cicero will be 15 in December and I'm sure he's developed some arthritis. What dog of that age wouldn't? He tries hard to keep up with his baby brother, 1-1/2 year old Apollo. For the past year we've been giving him Dasuquin, which had a noticeable effect immediately as he began to hop a few running steps trying to catch up to a thrown toy in our yard. As our supply was running low, I decided to try the Glycoflex Stage III - just one chew per day based on his weight of about 17 lbs. The chews are soft, shaped like a small dog bone, and too much for him to handle all in one piece, even though all his teeth are intact. But they're very easy to break cleanly into four smaller bite-sizes for him. We now see noticeably more energy in his ability to run. He still hops like a bunny, but faster and longer, so I think there's really something good going on here. Hoping for long-term results. Also, with 120 chews providing more joint support than the package of 84 Dasuquin, it's also a much better value.
Date published: 2016-10-26
Rated 5 out of 5 by from Great product, excellent price My 12+ year old mutt, Darcy, has been on this product for about 6 years now. She had no specific problems, but I had some on hand for her sister, and when she passed, thought I would continue giving them to Darcy. She eats the treats without any complaints and is able to run, jump and pretty much do anything she wants. The vet said she has some mild arthritis in her back, so I think these help to keep problems at a minimum. She is a trim 36 pounds, that helps too! Her new sister, a chunkier 44 lb mix of beagle, corgi and lab, has also been taking this for about 2 years now. The vet said a couple years ago Emmie has hip dysplasia, but Em doesn't seem to know that. She likes to go running with me, loves to run at the park and does the little dancing doggy thing for her treats (her idea, not mine). My only complaint with this product is there is a very pronounced and yucky smell lately. It never smelled bad before. But the dogs don't mind, maybe it enhances the flavor for them.
Date published: 2016-09-01
Rated 2 out of 5 by from Didn't work for my dog My 16-year-old Chihuahua-Jack Russell mix has bad arthritis -- in so much pain I was even thinking of putting him down. NSAIDS helped with pain (not the condition) and he pranced around like a pup again, but he has a collapsed trachea and the gastrointestinal irritation ratcheted his cough through the roof. I tried NaturVet Senior Wellness Aches & Discomfort Plus, and that worked really well. I then tried this instead for two solid weeks to see if it worked better, and he slowly went downhill, with diarrhea to boot. I put him back on the Aches & Discomfort yesterday, and he's already feeling better. The A&D isn't perfect but it's the best I've found so far. It's a big tablet he doesn't want to chew, so I grind it in a $7 pestel & mortar and mix in his food.
Date published: 2017-01-07
Rated 5 out of 5 by from This works like magic my elders and my 6 year old akita, who has hip dysplasia, are all using this product. Our vet initially was the one who told me about this product, so I paid a lot from him to test my dog on it. It worked like magic. My Akita had been in so much pain, from the cold he could not get up on the bed. After giving him this product he was like a puppy again. I then gave it to my 3 elders. Again they are playing and moving so much better. Chewy's is the only way I can afford to give my dogs this product. Thank you so much for keeping the price on this low so I can get this for my dogs.
Date published: 2017-03-14
Rated 4 out of 5 by from Very happy with this product I have a 11 year old lab that suffers from arthritis. He weighs 85lbs so he is a big guy. I really like this company and currently use this company for another dog that I have. She uses there bladder strength and has done so for many years, with great results. It was a no brainer to turn to this company for joint support. They use good mostly natural ingredients and that it is a complete joint supplement. They also offer different levels of support depending on how bad the joint issue is. These are a soft chew that are bone shape that seem irresistible to all of my dogs. My lab eats them without any problem but then again he is a lab. I have 5 dogs total and gave everyone a taste and everyone ate it without hesitation. The other nice thing is that after the loading dose this bag will last me a month so not a bad price for a high quality joint supplement that is easy to give. Over all I have seen improvement in 2 short weeks and hope to see more.
Date published: 2013-08-03
Rated 5 out of 5 by from I'm always a skeptic..... ..... but this Glyco Flex III works. I have a 10 year old (Helen) and an 8 year old (Levi)pit bull. Originally I began this for the 8 year old when he had a partial tear of his ACL. Helen was jealous of this "treat" he received, so I started giving them to her as well. I noticed not only did Levi begin to improve, but Helen became less and less stiff and lost the mild arthritic limp she had been developing. I I will admit Levi doesn't love the taste of these. So...I break them in half and hand feed them to him with a smear of cream cheese. Works every time.
Date published: 2017-02-10
Rated 4 out of 5 by from Relieved my dog can take them... My 98 lb. mixed breed shelter rescue has severe food allergies and is on a very strict hypoallergenic diet. He is 6 1/2 yrs old now and the vet recommended this product for his joint health. He is just beginning to show some stiffness in his hind leg and hip joints. I am very happy to report he has gobbled them up with his meals for two weeks now and his skin still looks great! And thanks to Chewy, they cost considerably less than at my vet's office, so I can give them to both my large dogs daily.
Date published: 2017-03-10
  • y_2017, m_3, d_26, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_295
  • loc_en_US, sid_53793, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_mrchewy