Free $30 eGift card with your $100 order

VetriScience GlycoFlex 3 Extra Strength Healthy Hip & Joint Chicken Flavored Chews with Glucosamine & Green-Lipped Mussel Supplement for Cats, 60 count

Deal
Skip image gallery
Slide 1 of 10

At a Glance

  • Hip & Joint Support
  • All Lifestages
$8.65 First Time Autoship Price
this order
Save 50% (up to $20) today when you set up Autoship. 
$16.43 Autoship Price
(-5%) future orders
  • Keep saving 5% on every order
  • Get deliveries on your schedule
  • Skip, change, or cancel anytime
$17.29 Chewy Price
($0.29 /ea)
Save $2.26 (-12%)
$19.55 List Price
Promo, Spend $100, Get $30 eGift Card with code SUMMER
Promo, New Customers Only: Spend $49+, get $20 eGift Card + free shipping with code WELCOME
In Stock
FREE 1-3 day delivery on first-time orders over $35
Free 365-day returns

About This Item

Details

  • Made in the USA to be soft, chewy, and satisfying.
  • Made with green-lipped mussel, glucosamine, MSM, DMG, and antioxidants for daily joint support.
  • Purr-fect for cats who are slowing down or showing signs of fatigue or weakness in their hind end, as well as for highly active kitties.
  • May help improve hind-leg strength and mobility so your furbaby can love their life.
  • Bite-sized chews feature a tasty and hypoallergenic hydrolyzed chicken flavor.

Instructions

FAQ

Key Ingredients

  • Green Lipped Mussel

    Natural source of omega-3 fatty acids and glycosaminoglycans for joint support, common in mobility formulas.

  • Vitamin E

    Fat-soluble vitamin that acts as an antioxidant to protect cells and stabilize fats.

  • Glucosamine

    Joint support nutrient that can help maintain cartilage and improve joint fluid. Common in senior and joint formulas.

  • MSM

    Sulfur compound often paired with glucosamine and chondroitin for joint support.

  • Vitamin C

    Antioxidant used to help preserve nutrients in foods and support immune health.

  • See full ingredient list
Learn More About VetriScience From Our Team of Experts

Science-Backed. Playtime Proven.

VetriScience Healthy Hip & Joint supplements give your cat daily joint support for mobility, hind-leg strength, and comfort. Made with premium ingredients and trusted by vets, these science-backed formulas support mobility at every stage of life!

Advanced Formulas with Premium Ingredients

Green-Lipped Mussel

Nature's own joint support.

Glucosamine, MSM & Chondroitin

Powerhouse ingredients that work together to support healthy joints.

Antioxidants & DMG

Boost physical performance, support healing, and fight harmful free radicals.

Make Each Day an Adventure

Multiple strength levels provide a perfect fit for every breed, size, and age.

  • Promote full-body joint health
  • Build healthy cartilage
  • Boost mobility & flexibility
  • Soothe everyday stiffness
  • Keep senior cats thriving
  • Support everyday comfort

No Fake Stuff. No Fillers. No Joke.

VetriScience health supplements use powerful levels of clinically supported ingredients and no fillers, hidden ingredients, or harmful preservatives. Carefully designed by veterinarians and nutrition experts with what pets need, and nothing they don't.

About VetriScience

For over 40 years, VetriScience has helped pets live a life without boundaries. Formulated by vets and recommended by professionals, VetriScience uses only pure, highly researched ingredients to produce products that are safe, effective, and delicious!

Shop VetriScience

Frequently bought together

Questions & Answers

14 Customer Questions

Are these soft chews or crunchy? My cat won't touch soft chews and they seem to be all I can find

Answer by Chewy • Dec 22, 2020
This supplement is formulated as a soft chew.

About how long does it take for these to start working? My cat has been eating them for 2 weeks now and no change. Should I give it more time or buy different product? Thank you. Good thing is that he loves them,he is real picky too.

Answer by Chewy • Nov 19, 2018
It takes approximately 4-6 weeks to begin seeing results and having to minimize the dosing.

Are these made in the USA ?

Answer by Chewy • Sep 22, 2019
All VetriScience products are manufactured in Vermont.

Are these NASC certified?

Answer by Chewy • Mar 30, 2024
This product is made in an FDA-registered facility using quality ingredients. VetriScience follows Good Manufacturing Practice guidelines, and is Safe Quality Food and NASC certified.
Reviews
Write a Review
4.1
Rated 4.1 out of 5 stars
531 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Active Ingredients

80% Positive

Dosage and Administration

84% Positive

Effectiveness

82% Positive

Quality and Safety

75% Positive

378 Customer Reviews

Rated 1 out of 5 stars
Verified Purchase
By Brenda on Oct 30, 2025

Packaging said "For dogs only"

I purchased this product along with some others to help my aging cat with mobility. When I looked at the back of the package for directions I immediately noticed

I purchased this product along with some others to help my aging cat with mobility. When I looked at the back of the package for directions I immediately noticed it said for dogs only, even tho the rest of the packaging has cats on it. The treats are even fish shaped so im no sure what happened there. Also, none of my 9 cats would eat them. They sniffed and walked away. I request3d a refund and was given thankfully. I purchased the Pet Honesty brand and they all love it.

Rated 2 out of 5 stars
Verified Purchase
By FelesPatrem on Aug 18, 2016

Cats won't eat them, treat size too big

Product is as described, shipped quickly and arrived within 1-2 days. We had a lot of hopes for this product since our girls are getting on in age and showing signs. 2

Product is as described, shipped quickly and arrived within 1-2 days. We had a lot of hopes for this product since our girls are getting on in age and showing signs. 2 main problems: 1) Cats won't eat them... they are not picky eaters either. This seems to be a hit-or-miss point with cats and very polarizing. They either love it or hate it. 2) Too big for most cats. Maine coons would find this bite size (my brother has 2), our siamese couldn't fit them into their mouth. I had to break up the treats into 4 bite-size bits. See attached image - glyco flex treats on right, for size comparison: temptations on left and american quarter in middle. The treats are very dense and square, so they're just as wide as they are tall whereas the temptations are very thin. No results to comment on since they ate half a treat on day one, a quarter of a treat on morning of day 2, and not a single bite on evening of day 2. Will continue to try and update review to reflect any changes if they occur.

Rated 5 out of 5 stars
Verified Purchase
By Chingupingu on Sep 18, 2021

My boys love these!!

Got these for my 14yo big boy who is slowing down and having a hard time jumping. He’s notorious for refusing to take any pills and will not eat any food I put the

Got these for my 14yo big boy who is slowing down and having a hard time jumping. He’s notorious for refusing to take any pills and will not eat any food I put the cosequin powder in. Very very picky. So I was skeptical when purchasing these that he would even eat them. But he looooooves them!!!! Even my 4yo loves them. I have to give him half a treat just so he won’t try to steal big boy’s treats. As soon as I get up in the morning they are both yelling for their glyco nummins and yes they know what that crazy word means now! So far they love the taste which is great. Have been giving them these for about 10 days now. Package says it takes 4 to 6 weeks for the full benefits to show. So cannot give feedback on how effective they are.

Rated 5 out of 5 stars
Verified Purchase
By Jessica on Jun 15, 2021

Booger's Special Treats

I bought these for my 16 year old boy Booger who has arthritis which was slowing him down and making it difficult to jump. He was on the dasaquin for a few months

I bought these for my 16 year old boy Booger who has arthritis which was slowing him down and making it difficult to jump. He was on the dasaquin for a few months and he improved but it made his pancreatitis flare up. So then we were giving him a natural joint supplement treat called sea flex. He didn't like them enough to take every day. I finally was desperate and asked the vet. She recommended this brand and had seen results in dogs (not cats). Booger loves these and gobbles them up fast. I have 2 other cats (brothers age 11) and one likes them but the other doesn't. We are definitely seeing results after a few months. Booger is now getting the zoomies again and has noticibly less issues with jumping.

Rated 5 out of 5 stars
Verified Purchase
By Brendan on Apr 28, 2026

I have not tried this, but my joints are in pretty good shape i think.

Flavor wise, I have no idea, but the cat really seems to enjoy it. I don’t know if it’s actually helping because he has always been able to jump pretty far and he

Flavor wise, I have no idea, but the cat really seems to enjoy it. I don’t know if it’s actually helping because he has always been able to jump pretty far and he doesn’t really complain about joint pain, at least not to me. Maybe he’s complaining to my wife. Hold on I’ll go ask her. She said the same thing, that the cat is not complaining to her about joint pain. She also said that the cat doesn’t talk, so I guess that could be a pretty big reason we haven’t heard any complaints. This stuff is good and I think does what it’s supposed to do, but I have no idea, it could just be a tasty treat. I like the new packaging. I’m a designer, so I like stuff like that. I honestly can’t tell you what the company’s name is, but I can recognize the packaging from a long ways away. Maybe not space long ways, like I don’t think I could see the packaging from the space station if it was on earth, but it’s very recognizable when it’s inside of a pet store or on a large webpage full of a bunch of different products. I just scrolled up a little bit and realized the company is called VETRISCIENCE. It’s not awful, but it’s not the best name I’ve seen for a company. Regardless, they make pretty good products and if you’re thinking about giving something to your pet for their secret joint pain, this one is a pretty good one, plus they make stuff for dogs too.

Rated 5 out of 5 stars
Verified Purchase
By Terry on Jul 22, 2025

Treats

I’ve giving them to her as directed. 2 treats a day for four weeks then one a day for her arthritis. The first day you could tell she felt better. Wasn’t limping

I’ve giving them to her as directed. 2 treats a day for four weeks then one a day for her arthritis. The first day you could tell she felt better. Wasn’t limping like she was and just seems more content. I recommend trying them as directed. They’re working for Abby.

Rated 5 out of 5 stars
Verified Purchase
By Alyssa on Sep 27, 2020

Product seems to help, but only one month in :)

My cat is 17 years old so I have been worried about her joints with increasing age. She was a little hesitant jumping places sometimes but now she seems to not mind

My cat is 17 years old so I have been worried about her joints with increasing age. She was a little hesitant jumping places sometimes but now she seems to not mind it as bad. While I don't know exactly how far she will be helped with only one month or treatment so far, she LOVES the treats regardless. She actually will RUN for them. It's adorable! The only thing I would recommend is maybe tearing up the bites for the cat some. It's just kinda large and she had trouble chewing the whole thing at once. It seems like if you didn't at least split it in half they could choke on it. However with splitting it she thinks sometimes she is getting more and gets happy so thats just fine!

Rated 1 out of 5 stars
By Bandit on May 5, 2021

This product killed my cat!!!

I started feeding one of my 2 cats GlycoFlex chews on April 16th. By April 26th we were in vet emerg and by May 2nd he was dead. Symptoms appeared to be poisoning

I started feeding one of my 2 cats GlycoFlex chews on April 16th. By April 26th we were in vet emerg and by May 2nd he was dead. Symptoms appeared to be poisoning. Cat had no other health issues before other than occasional hind end joint stiffness. VetriScience denies it was their product that killed him. My cat suffered a painful death 2 weeks after starting these. My other cat, who eats the same cat food but did not eat GlycoFlex, is fine. Amazon’s Food & Safety dept notified me that they’ve launched an investigation into safety concerns of this product. I am devastated that I lost my cat this way. I now live with the guilt of killing him. We did not deserve this. DO NOT EVER USE THIS PRODUCT or purchase anything from this company!!

Rated 5 out of 5 stars
Verified Purchase
By Alicia on Jul 27, 2024

No luck

I had no luck with these unfortunately. My senior cat, MJ, just did not want to try them once at all. I tried different ways to get her to try it for a few months

I had no luck with these unfortunately. My senior cat, MJ, just did not want to try them once at all. I tried different ways to get her to try it for a few months but no luck. Sometimes she doesn't want to try something new right away but then likes it later after some time passes. No luck this time around. I am giving five stars because there is no way I can judge the item without MJ taking them. Her not wanting to try them doesn't mean they don't work. Based on other reviews, other fellow cats like them just fine and are doing great on them.

Rated 5 out of 5 stars
Verified Purchase
By VikingGirl on Feb 6, 2020

So far, so good

My 13 year old tubby cat actually eats these. He has arthritis but would not eat the sprinkles, or liquid mix ins, or soft chews. These chews are firm but not quite

My 13 year old tubby cat actually eats these. He has arthritis but would not eat the sprinkles, or liquid mix ins, or soft chews. These chews are firm but not quite crunchy. They are also large, so I break then into 3 pieces and add them to wet food. It has only been a couple weeks, so I can't say if they are helping the achy joints or not. But at least he is eating them, so I remain hopeful. I'll try to remember to update this if he starts doing cartwheels, because his joints feel better.