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VetriScience GlycoFlex Stage II Moderate Strength Joint Support Bite-Sized Cat Chews, 60 chews

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GlycoFlex II Hip and Joint Supplement for Cats represents the second stage of VetriScience Laboratories’ comprehensive joint support program designed to meet the needs of cats starting to slow down due to age, weight issues or the onset of joint health issues. Recommended by veterinarians for over 30 years, Glyco Flex II for Cats includes quality joint support ingredients like glucosamine and MSM as well as perna canaliculus sourced from the waters of New Zealand. Combined, these ingredients lubricate and support joint structure and activity to help keep cats healthy and happy.

Key Benefits

  • For cats showing signs of joint discomfort and loss of mobility
  • Includes clinically proven ingredients to build cartilage, support the synovial fluid in the joints and manage irritating inflammation
  • Contains quality joint support ingredients like glucosamine, MSM and perna canaliculus. Combined these ingredients lubricate and support joint structure and activity to help keep cats healthy and happy
  • Soft chews are naturally flavored with real chicken liver and formulated specifically for cats
  • The GlycoFlex Joint Support Stages system has been trusted and recommended by veterinarians for over 30 years. All VetriScience products are veterinarian formulated and approved by our veterinary review board


Safe use in pregnant animals or animals intended for breeding has not been proven. If lameness worsens, discontinue use and contact your veterinarian.

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  • Item Number
  • Food Form
  • Lifestage
  • Made in
    United States
  • Special Diet
    Weight Control
  • Supplement Form

Nutritional Info


  1. Active Ingredients Per 2 Chews: Perna Canaliculus (Glycomega Brand Green Lipped Mussel) (300 mg), Methylsulfonylmethane (MSM) (250 mg), Glucosamine HCl (Shrimp and Crab) (250 mg), N,N-Dimethylglycine HCl (DMG) (50 mg), Manganese (as Mn Proteinate) (5 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.

Feeding Instructions

Initial (4-6 weeks): give 2 chews per 10 lbs of body weight daily

Maintenance (after initial period): give 1 chew per 10 lbs of body weight daily

If giving more than 1 chew, divide between AM and PM.

Use Stage Daily Feeding
Initial (4-6 weeks) 2 chews/10 lbs body weight
Maintenance 1 chew/10 lbs of body weight

If giving more than 1 soft chew daily, divide between AM and PM.

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Clinically Proven Joint Support

GlycoFlex gives your cat 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 2 combines powerful ingredients like green-lipped mussel, glucosamine, MSM, manganese and a patented DMG to support joint comfort, structure and function.

GlycoFlex 3 is an extra-strength formula to ease joints and support connective tissue functions. These bite-sized chews also contain vitamins C and E.

GlycoFlex Plus uses an advanced combination of ingredients that includes antioxidants and vitamins to cushion joints and support overall comfort and mobility.

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.

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About VetriScience

Customer Reviews

VetriScience GlycoFlex Stage II Moderate Strength Joint Support Bite-Sized Cat Chews is rated 4.2 out of 5 by 58.
Rated 5 out of 5 by from He loves them! We have a cat with urinary issues that his doctor has been unable to find a cause for which after doing research on the internet isn't all that uncommon. He had recommended glucosamine treats along with dietary changes. The treats we had been giving him apparently changed since the last time we had ordered them-going from chicken flavor to fish, which I knew Tiger would not go for. A lot of the reviews on the revised product were negative and included vomiting and other negative effects. This looked like it may do for him and it was chicken flavored so we ordered one package to try it out. So far so good. He likes them a lot more than the old kind and we have not seen any negative results and he's back to his rascally old self. They are soft and chewy. I don't have a bit of trouble getting him to eat them. We will be ordering more!
Date published: 2017-01-14
Rated 5 out of 5 by from Glyco Flex Chews Recommended by the vet for our 16+ year old cat who has several issues in his hips due to age. After 1 month, he is walking better and even able to jump without issue. A picky eater, he actually comes running when he hears the bag open. They smell bad, but work wonders. And at a fraction of the cost from the vet's office.
Date published: 2017-01-15
Rated 4 out of 5 by from good product My cat don't eat it, so I use a coffee grinder to beak them, I put 4 ,5, or 6 chews into the coffee grinder, run it for 1 or 2 minutes, after that it looks like brown sugar except softer and moist, then I mix them with cream cheese or wet food or with mayonnaise or with butter, and my cat eats them, don't overload the coffee grinder with too many chews at a time, it will ruin the coffee grinder's rotor blade (motor spinning like crazy but blade don't) then you have to buy another grinder, hope this will help
Date published: 2016-12-25
Rated 4 out of 5 by from Delicious for one, Rejected by the other. What can you do? They're CATS! they like what they like and not what they don't. One of my cats attacked this bag of GlycoFlex like it was fudge brownies for a human. chewed the bag. Unfortunately, it is the other cat who is limping. I will keep buying this product for my boy who likes them because I think it is smart for them to have glucosamine etc (they are both a little overweight) for their joints and I will find a second type for my fussy girl.
Date published: 2017-01-20
Rated 1 out of 5 by from My Cats did not touch I am upset because these treats are fairly expensive and my cats turned their noses up to it. Had to throw them out.
Date published: 2017-02-06
Rated 5 out of 5 by from Noticed a difference Our 14 year old cat seemed to having trouble with her hips and we thought she needed some help. Since using these, she has taken an interest in her toys again and even batted one around, which she hasn't done in a long time, so I think she is feeling better already. We are using only 2 chews per day, however, because she didn't seem to want to eat two of these twice a day, but she likes them so we are satisfied.
Date published: 2016-12-03
Rated 2 out of 5 by from Wish my older cat liked I purchased this thinking that it would be a nice alternative treat for my cats, especially my older cat that's having a difficult time getting around and cleaning herself. Unfortunately, she wasn't a fan. One out of my 3 cats like them, but I won't be purchasing this again. I highly recommend if you don't have picky cats!
Date published: 2016-12-29
Rated 5 out of 5 by from My cat moves better There was a time when my cat was climbing onto the bed, rather than jumping up. My vet sold me this supplement. He soon improved. He's now 15 years old and jumps up onto the counter. So for years I've given him 1 a day, but was paying $18 a bag through my vet. Lately I've been getting them from Chewy.com.
Date published: 2016-12-12
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