Vetoquinol Flexadin Advanced with UCII Collagen Soft Chews Joint Supplement for Dogs & Cats, 60 count

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About This Item

Details

  • Supports healthy joints and flexibility
  • Omega-3 fatty acids help relieve inflammation and soothe aching joints
  • Vitamin E, a well-known antioxidant and free radical, helps prevent the breakdown of cartilage
  • UCII, an undenatured type II collagen derived from chicken sternum, provides optimal joint support
  • This highly palatable and easy to chew treat is suitable for all dogs and cats

Ingredient Information

Instructions

FAQ

Learn More About Vetoquinol From Our Team of Experts

About Vetoquinol Flexadin Advanced with UC-II

Just 1 Chew Per Day

You only need to give your pet one Flexadin Advanced chew per day, regardless of age or weight. Whether you have a small kitten or a large breed adult dog, a once-daily dose of these specially designed chews is all your cat or dog needs. Made for dogs and cats of all sizes—from puppies and kittens to adults!

100% Satisfaction Guarantee

We’re so sure your pet will like it that our products come with a 100% satisfaction guarantee.

For Hips and Joints

This high-quality, veterinarian-developed formula provides joint support with just one dose per day.

Promotes Healthy Cartilage

Undenatured chicken collagen type II (UC-11) in the formula works differently than glucosamine and chondroitin.

What is UC-11?

This proprietary ingredient helps maintain healthy cartilage and supports immune system function.

Great for Multi-Pet Homes

Dogs and cats alike love the taste of Flexadin Advanced!

About Vetoquinol

Vetoquinol believes that a healthy pet is a happy pet. That’s why they are committed to creating uniquely formulated products that are easy to administer and designed to foster good health at every life stage. Since 1933, this independent family business has been on a mission dedicated exclusively to animal health. Their goal every day is to enrich the lives of pet parents by helping their pets be well and thrive!

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Questions & Answers

21 Customer Questions


Where is this product made? Where are the ingredients sourced from?

Answer by ChewyOct 10, 2019
This product is made in Canada. The majority of the ingredients are sourced in Canada as well as the USA.

How long does this take to “kick in”? I have a 20-lb cat and no improvement in almost a month... should I keep giving them to her because it takes a while? The vet told me to get these....

Answer by ChewyOct 17, 2020
The amount of time it takes for these chews to have an effect on your pet will vary based on their current condition, weight, and eating habits among other factors. We recommend reaching out to your veterinarian with any questions you have regarding the efficacy of this supplement.

Can dogs with renal insufficiency take these? What is phosphorus content?

Answer by ChewyMay 20, 2021
There are no contraindications for Flexadin Advanced Chews with UCII for Dogs & Cats. The manufacture does not measure for phosphorus content. These chews are only 3 grams each and the directions are to give 1 chew per day for any size cat or dog. It would be a very small amount of phosphorus in each chew.

What is the calorie content of each chew?

Answer by ChewyNov 14, 2019
These chews contain approximately 15 calories per chew.

4.7
Rated 4.7 out of 5 stars
1676 Ratings

Customers Mention

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

Active Ingredients

87% Positive

Dosage and Administration

85% Positive

Effectiveness

90% Positive

Quality and Purity

85% Positive

615 Customer Reviews



Rated 5 out of 5 stars
By Sharpeihorse on Oct 1, 2024

My dog eats them

I haven't had my dog (Smooth coat Collie) on this product long enough to see the full benefits. I had her on a pain pill prescribed by the vet and it definitely

I haven't had my dog (Smooth coat Collie) on this product long enough to see the full benefits. I had her on a pain pill prescribed by the vet and it definitely helped, but I didn't want to leave her on them. My dog is now strictly on this joint supplement with no pain meds for a few days. She is way less hesitant to go upstairs in the evening. She used to hide in the other room, but now she's at the steps ready to go up. She also would cry and be hesitant to go down the stairs in the morning. She happily ran down them this morning on her own. She was also playing with our other dog last night, which she hasn't been doing. I can't wait to see the full benefits if it's already worked this well so quickly. I figured it would take a month or more, not a week or more. I'm happy it's working this well so quickly.

By Sharpeihorse on Oct 1, 2024

Rated 5 out of 5 stars
By Lori on Nov 3, 2025

Love this product

On the advice of my vet I switched out cosequin for this product and it made a noticeable difference for my last dog, who had arthritis. She was a 50 lb heeler/shep

On the advice of my vet I switched out cosequin for this product and it made a noticeable difference for my last dog, who had arthritis. She was a 50 lb heeler/shep mix who passed away at 14 years and two months. I also had her on Myos and fish oil and Adequan, and even so, Flexadrin made a difference in how she walked. I now have a 5 year old Lab and decided to start her on it now - she’s not dealing with any arthritis, but I figure this can’t hurt.

By Lori on Nov 3, 2025

Rated 5 out of 5 stars
By Esther on Jan 22, 2025

Great for our Doggy

We were suggested Flexadin Advanced for our large dog who has back hip and spine issues. With daily continued use over a few months, Miss Peggy has transformed from

We were suggested Flexadin Advanced for our large dog who has back hip and spine issues. With daily continued use over a few months, Miss Peggy has transformed from difficulty sitting up and walking, to enjoying her walks and playing. We love this product. Just be sure to be consistent and use long term. I highly recommend.

By Esther on Jan 22, 2025

Rated 5 out of 5 stars
By Yve on Jan 7, 2025

Recommended by a veterinarian friend

I felt like these helped our older Great Dane feel more comfortable as he got older. I could tell a difference in days when he didn’t get one. I also was able to

I felt like these helped our older Great Dane feel more comfortable as he got older. I could tell a difference in days when he didn’t get one. I also was able to cut back on prescription meds when he started taking these because overall he looked more comfortable.

By Yve on Jan 7, 2025

Rated 1 out of 5 stars
By Jojo on Dec 16, 2025

VERY disturbed by Flexadin

After 14 months on this product I finally called them because I was concerned their marketing is deceptive. They state there is 40mg of UC2 collagen but if you

After 14 months on this product I finally called them because I was concerned their marketing is deceptive. They state there is 40mg of UC2 collagen but if you read the back of the package it says onky 10mg of Undenatured UC2. That is what is needed to help rebuild the cartilage and what was tested in all the studies!! So our dogs are NOT getting the dose they need as seen in other products which is 40mg. i’ve been sitting here spending all this money and my dog has not seen any benefit from this and now I know why because there’s barely any underneath your collagen in this product!

By Jojo on Dec 16, 2025

Rated 5 out of 5 stars
By Keith on Nov 11, 2025

Does what it is supposed to.

We bought these especially for buddy our 14 year old Australian Shepherd who was having arthritic and joint problems. It definitely has improved and he gets around

We bought these especially for buddy our 14 year old Australian Shepherd who was having arthritic and joint problems. It definitely has improved and he gets around quite a bit better.

By Keith on Nov 11, 2025
Buddy
Buddy

Rated 5 out of 5 stars
By Judith on Dec 8, 2025

Amazing results!

Almost immediately (within a few days, actually), our Rudy was acting like a different dog! He no longer hesitated before jumping into my lap and didn't tire as

Almost immediately (within a few days, actually), our Rudy was acting like a different dog! He no longer hesitated before jumping into my lap and didn't tire as quickly when playing his favorite game of "keep the ball from daddy!" We could hardly believe the difference. It's wonderful to have our precious Rudy feeling like his old self! It even comes in a "dog chew" that he absolutely loves so much that It's become a treasured morning treat for him. This product is amazing!!! Thank you, Chewy, for providing this wonderful arthritis medication!!!

By Judith on Dec 8, 2025

Rated 5 out of 5 stars
By Rachel on Jul 13, 2021

Helps tremendously with my dogs' issues

After trying multiple other treatments and not wanting to keep my dogs on prescription pain meds, my vet recommended Flexadin. It's done wonders for my 13-year-old

After trying multiple other treatments and not wanting to keep my dogs on prescription pain meds, my vet recommended Flexadin. It's done wonders for my 13-year-old girl with severe arthritis, as well as my younger boy who has bad hip issues, serious arthritis, and who also suffered a significant femur break prior to my adopting him. Shelter life was hard on him but he and my oldest girl have both made incredible recoveries from previous limps. I give them each a chew with their breakfast every morning and it helps them get through the day without the hindrance of aches. Highly recommend. My dogs like the taste despite their normal disdain for anything resembling medicine. :)

By Rachel on Jul 13, 2021

Rated 4 out of 5 stars
By Stella248 on Apr 15, 2022

Big treats for a 16 y/o tabby

These came recommended from my vet and I love them. They are on the bigger side, about the size of 3 Temptation treats, but they are soft enough for him to chew

These came recommended from my vet and I love them. They are on the bigger side, about the size of 3 Temptation treats, but they are soft enough for him to chew without breaking it up. I was hesitant at first with the cost because he's very selective with his flavors, but even he loves them. He can't wait to get them in the morning. I'm giving these 4/5 stars due to it being too early to notice any real improvement with his movements. Although, my husband has noticed an uptick in activeness and mobility.

By Stella248 on Apr 15, 2022

Rated 5 out of 5 stars
By Dawn on Sep 29, 2023

Impressive

After scrutinizing several other products (ingredients, reviews) I finally decide on these for my 15 year old cat who seems to have pain in his back legs/hips and

After scrutinizing several other products (ingredients, reviews) I finally decide on these for my 15 year old cat who seems to have pain in his back legs/hips and does not jump as swiftly as he used to. I broke the chew into three pieces, and put in his food bowl and HE ATE THEM! Second day he ate them AGAIN! And I swear I already see a difference in his mobility! and I can tell he feels better.

By Dawn on Sep 29, 2023