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

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At a Glance

  • Hip & Joint Support
  • All Lifestages
  • All Breeds

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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

18 Customer Questions

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

Answer by Chewy • Oct 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 Chewy • Oct 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 Chewy • May 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 Chewy • Nov 14, 2019
These chews contain approximately 15 calories per chew.
Reviews
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4.7
Rated 4.7 out of 5 stars
1465 Ratings
Terms & Conditions

Customers Mention

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

Active Ingredients

88% Positive

Dosage and Administration

85% Positive

Effectiveness

89% Positive

Quality and Purity

85% Positive

566 Customer Reviews

Rated 4 out of 5 stars
By Judy on Jan 18, 2026

Princess Loves this!!!

I didn't see many reviews for cats. What I did see was positive. My 19 yo Calico that is beyone picky Can't wait for this. I haven't seen her excited in years

I didn't see many reviews for cats. What I did see was positive. My 19 yo Calico that is beyone picky Can't wait for this. I haven't seen her excited in years. Now to see if it helps her arthritis is why I gave it four stars. Only 2 treats so far. The piece is bigger so I easily break it down for her. I am anxious to see if her movement improves as she does have a bit of a limp. For the price if it helps it is definitely worth it. I will update when I see if it helps her movement at a later time.

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!!!

Rated 1 out of 5 stars
By Michael 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!

Rated 4 out of 5 stars
By H on Dec 24, 2025

Big. Pricey. Not his favorite

I am not sure how well these are helping with the joints, but they did seem to make my cat’s fur very soft, and his skin less flaky than it was. I am happy about

I am not sure how well these are helping with the joints, but they did seem to make my cat’s fur very soft, and his skin less flaky than it was. I am happy about that, but these are quite pricey, and I may not be able to continue purchasing them..

Rated 5 out of 5 stars
By Melinda on Nov 25, 2025

Amazing

These are amazing. My dog tore her ACLs, and I give these daily to help with joint issues and arthritis. I have recommended these to 2 friends whose dogs are older

These are amazing. My dog tore her ACLs, and I give these daily to help with joint issues and arthritis. I have recommended these to 2 friends whose dogs are older and have a lot of joint pain, and it has literally changed their lives. Both dogs were barely mobile and now they are up and moving like young dogs again.

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.

Rated 5 out of 5 stars
By joann on Nov 20, 2025

affordable and vet recommended

The vet recently saw Mollie my aging poodle and noted her sensitivity to her back.That said she suggested flexadin for both dogs and the rest is history! they both

The vet recently saw Mollie my aging poodle and noted her sensitivity to her back.That said she suggested flexadin for both dogs and the rest is history! they both like it they can chew them no GI upset!! 1 per dog not dog wt related for those wondering. More will be revealed this winter as both have arthritic changes.

Rated 4 out of 5 stars
By Pet Guardian on Dec 23, 2025

These!

My 10 years young shepherd loves these. Along with his monthly librela injection, he can handle the stairs at home. jump in and out of the car, up and off the bed,

My 10 years young shepherd loves these. Along with his monthly librela injection, he can handle the stairs at home. jump in and out of the car, up and off the bed, and sortof gallop across the park. :)

Rated 5 out of 5 stars
By Lisa on Dec 26, 2025

Taste

Our vet recommended these to us for our older dog’s joint issues. These things take time, but he likes the taste, so they are easier to give than pills. Not cheap

Our vet recommended these to us for our older dog’s joint issues. These things take time, but he likes the taste, so they are easier to give than pills. Not cheap but we are sticking with them.

Rated 5 out of 5 stars
By Kathi on Nov 24, 2025

She LOVES it!

My 15-year-old cat NEEDED these for her hips. They’re a little large, so I cut them into three pieces, and I tell her they’re treats! By the second day, she was

My 15-year-old cat NEEDED these for her hips. They’re a little large, so I cut them into three pieces, and I tell her they’re treats! By the second day, she was walking better and doing things that she hadn’t in a long time. She’s obviously more comfortable now! GREAT!