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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
    Soft Chew

Nutritional Info


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.

Pet Lovers Also Bought

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

76 reviews 76 Reviews 4.1 out of 5 Stars
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83% Recommend

83% of reviewersrecommend this product

4.1 / 5
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  • Cat's favorite medicine

    By on

    My family has an elderly cat with arthritis--he had gotten to the point that he slept all day, rarely walked (and looked like it was troublesome when he did), and couldn't go up the stairs anymore. Our vet recommended this product, and within the week, he was up and walking more comfortably. The biggest surprise was seeing him at the top of the stairs one morning!! This product really works--and he looks forward to eating these yummy chews.

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  • Great product, awesome price

    By on

    I had this product prescribed for my 4 year old cat who has spondiosis, which is a bony growth on the vertebrae at the end of his spine/beginning of his tail. It's been causing him a lot of pain. However, since he started taking these, the pain seems to be improving, and he really loves them. Also, the chewy.com price is significantly less than the price I paid for them at the vet.

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  • Worked really well!

    By on

    My Kat loved these at first. Gave him two a day for about a month, then one a day & could see marked improvement in his walking & jumping. But then he decided he didn't like them any more. I broke them up in his wet food, that worked for a while but he stopped eating the wet food too. Not sure why he decided he didn't like them any more, but we can tell the difference of him not taking it. Going to try sprinkle product instead.

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  • Really Helps

    By on

    My veterinarian recommended these for my kitty. He is overweight (was when I got him 6 years ago) & we don't know how old he is. Last month he started dragging his hind leg. After just a week of taking them, he was walking much better. It's been 4 weeks and he can jump on & off the couch and jumps off of my bed. They must taste good because he gobbles them up like a treat.

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  • One out of two...

    By on

    At first neither of my two senior cats would touch them. The chews are *very* smelly, so I couldn't really blame my boys, and figured I'd have to reluctantly write off the cost as a loss. However, a couple of weeks after they were delivered, I tried again on a whim, and one of my two cats - 13 y.o. and overweight - now looks forward to his daily treats! They are large chews, so I have to break them into two or three pieces. The other cat still turns his nose up, but since I bought them specifically for my big boy, I'll count this purchase as a win.

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  • Cats think it's a treat

    By on

    My vet recommended GlycoFelx 2 for my 1 year-old cat because he's prone to cystitis (inflammation of the bladder). There's some evidence that it helps with that condition. They must taste good, because Wenny likes to eat them. I give one to each of my other cats as well (two are 3yrs, one is 5yrs), and they like them too. I figure it's never to early to start joint support.

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    By on

    Cats like them and think they are getting a treat every morning! My cats are 7 and 8 years old, the 8 year old only has 3 1/2 legs, so she needs the hip & joint support because of the way she walks. Both cats are playing and running more than they were before I started giving them these. I will continue to give these daily and when the time comes I can jump to the "stage 3"

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  • old cat loves

    By on

    I ordered this for my 17 year old cat and he eats it right out of the tube. I also or 8 more cats they all want it.

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  • Determined

    By on

    I think this may be a good product. My boy LOVED it for the 1st 6 days. Now he won't touch it! I'm not ready to throw in the towel yet. Mixed it in tuna, tricked him once, then he got smart! Need to try another way to get him to eat it.

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  • Expensive, yummy, undecided.

    By on

    A bit expensive but my senior cat really likes them. I'm not sure if they're doing any good yet.

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