A leap in joint care science.

Fast-acting Rejensa® joint care chews are clinically proven to deliver a visible difference in as little as 16 days*.

Rejensa products

A breakthrough joint supplement for dogs.

Rejensa container

Rejensa

About Rejensa

Fast-acting Rejensa joint care chews are the only joint care chews for dogs that contains Gluco Blu® (N-Butyryl Glucosamine), an improved form of glucosamine that really works.

See the difference in as little as 16 days.*

In a recent study, dogs given Rejensa showed statistically significant improvement of quality of life, as compared to those given a leading glucosamine product.*

So bring back that dog you love! Ask your vet about Rejensa.

It’s the fast-acting daily joint care chew that makes a difference.

Clinically proven Rejensa with Gluco Blu is a tasty chew dogs love.

Giving your dog Rejensa every day can help maintain healthy joints and active movement.*

Rejensa chart

Dog’s weight Number of
chews per day
Days given
30-chew jar
Days given
60-chew jar
Up to 29 lbs ½ 60 Days 120 Days
30 to 59 lbs 1 30 Days 60 Days
60 to 89 lbs 1 ½ 20 Days 40 Days
90 to 120 lbs 2 15 Days 30 Days

Each chew contains: N-Butyryl Glucosamine (Gluco Blu) 1,620 mg

Other ingredients: Caramel Powder, Chicken Digest, Chicken Meal, Cultured Skim Milk, Dried Molasses, Egg Product, Glycerin, Natural Smoke Flavor, Rice Flour, Rice Bran, Salt, Tocopherol (as a preservative). Ingredients listed in alphabetical order.

Does your dog need Rejensa?

Dogs may show signs of developing joint pain or joint-related issues throughout their lives. It’s difficult to know if your dog is experiencing joint pain because dogs have naturally evolved to hide pain or discomfort. Signs to look for include:

  • Hesitancy to climb up or down stairs
  • Trouble rising after lying down
  • Sleeping more than usual
  • Difficulty jumping into the car or onto the bed
  • Lagging behind and reluctance to go on walks
  • A lost interest in running, fetching and play
  • Irritability and general behavior changes

Image of a dog

Sad dog

If you notice one or more of these signs, Rejensa is here to help.

FAQs

FAQ first column

Rejensa joint care chews are a daily supplement clinically proven to support canine joint health with the innovative molecule Gluco Blu (N-Butyryl Glucosamine). They come in a delicious, soft chew that your dog will love.

Gluco Blu is N-Butyryl Glucosamine (GlcNBu), a breakthrough analog of glucosamine developed as an improved form to provide clinical benefits. Rejensa is the only joint care chew on the market today that contains this revolutionary, clinically proven form of glucosamine.

It’s difficult to know if your dog is experiencing joint pain because dogs have naturally evolved to hide pain or discomfort. Signs to look for include:

  • hesitancy to climb up or down stairs
  • trouble rising after lying down
  • sleeping more than usual
  • difficulty jumping into the car or onto the bed
  • lagging behind and reluctance to go on walks
  • a lost interest in running, fetching and play
  • irritability and general behavior changes

If you see any of these signs, speak to your veterinarian about them.

Dogs may show signs of developing joint pain or joint-related issues at any point throughout their lives. Rejensa can be given before you start to notice signs. As with any healthcare regimen for your pet, you should always consult with your veterinarian first.

Look and see if your dog becomes more comfortable doing those activities they seemed reluctant to do or had difficulty doing before starting Rejensa (running, jumping, climbing stairs, etc.). Our studies show that a visible difference can be seen in as little as 16 days, depending on the dog.

FAQ second column

Rejensa contains Gluco Blu, an improved form of glucosamine, clinically proven to show results in as little as 16 days with daily use.

In a recent study, dogs given Rejensa showed statistically significant improvement of quality of life, as compared to those given a leading glucosamine product.*

Quality-of-life parameters measured included a number of mobility assessments:

  • Climbing the stairs
  • Jumping up and down
  • Walking and running
  • Jumping over low obstacles
  • General activity levels

Rejensa is available in two jar sizes: 30 chews and 60 chews.

Each chew contains:
N-Butyryl Glucosamine (Gluco Blu) . . . . . . 1,620 mg
Other ingredients: Caramel Powder, Chicken Digest, Chicken Meal, Cultured Skim Milk, Dried Molasses, Egg Product, Glycerin, Natural Smoke Flavor, Rice Flour, Rice Bran, Salt, Tocopherol (as a preservative).

Ingredients are listed in alphabetical order.

We believe your veterinarian is your best partner in your pet’s health needs and therefore Rejensa is available exclusively through veterinary clinics. Ask your veterinarian about Rejensa.

Click on the tab labelled “Find Rejensa” and use the search tool provided to locate a nearby veterinary clinic or to order through their online store.

If you don't find a veterinary clinic near you on this list, please email customercare@rejensa.com to connect you with a clinic that carries Rejensa.

Looking to buy Rejensa for your dog?

Find Rejensa joint care chews at a nearby veterinary clinic or through their online store by using the search tool below.

Testimonials

Check out the great things people are saying about Rejensa!

video 8 screen shot

Roxy, Small Mixed Breed, age 7

Roxy broke her front paw and her front leg was placed in a cast. Unfortunately, her paw did not heal correctly, and for the past three years Roxy has been travelling through life on only three legs, obviously painful when using all four legs and limping all the time.

I started Roxy on Rejensa and within 4 weeks Roxy’s limp subsided dramatically and she started using all four legs when walking and running.

I am amazed how well she is doing and obviously in far less pain, she is more comfortable and happier and more playful!

I am so thankful to have learned about Rejensa and so very pleased to have my wonderful loving dog feeling much happier!!! Rejensa has really made a difference!!!

Thank you Rejensa!

Laura M., Pet Owner

video 10 screen shot

Zoom, Labrador Retriever & K9 Partner, age 4

Zoom was around three years old when we started giving him Rejensa. A young, strong, healthy, fast dog, but with a difficult job that takes its toll. Ten to twelve days in after beginning Rejensa, I started to notice a difference in him.

We wanted to get him on Rejensa as a preventative measure, and we’ve seen improvements in stamina, recovery time, and we want to keep him happy and healthy for a long time, including after he retires.

It’s important to start your dogs on Rejensa early, just like Zoom. We use Rejensa to prolong my dog’s career.

Mike Searcy, Kansas City, Kansas Fire Dept and Kansas State Task Force

video 1 screen shot

Gaby, Chow, age 14

Gaby, my 30-pound chow rescue has tried everything for her severe degenerative joint disease. Gaby’s mobility and demeanor changed almost overnight after taking Rejensa.

In fact, on day 2 or 3, she was running in circles outside the hospital.

The hospital staff thought that I got a new dog. This change in Gaby made me cry (happy tears).

Annette V., Pet Owner

video 2 screen shot

Chloe, Lab, age 10

Chloe is a spayed lab. She has arthritis, is diabetic and has hyperthyroidism.

She was taking insulin, prion, thyro tabs prior to Rejensa and nothing for the arthritis. The video speaks for itself.

Christi B., Pet Owner

video 3 screen shot

Piper, Border Collie Mix, age 15

Piper is a border collie mix who had difficulty getting into the car. See video of happy Piper!

Jessica F., Pet Owner

An owner with his dog

Browning, German Shorthaired Pointer, age 16

I’m a dog trainer and shooting instructor, and I took my German shorthaired pointer, Browning, hunting with me this season. In the past, I noticed that he was slowing down.

Having given a daily dosage of Rejensa to Browning, I can definitely see a renewed kick in his movements and running motions. He’s peppier and keeps up with the younger dogs.

Rejensa has definitely helped with his mobility, and he loves the taste!

Cheng M., Dog Trainer and Expert Shooting Instructor

Fetus jumping Fetus face close up

Festus, Mixed Breed, age 13

Recently I moved into a new home with my 50-pound mixed-breed dog, Festus.

He had been slowing down a bit, I thought due to his age. When I moved, he spent a lot of time moping around. I attributed it to the move; coming into a house with two other dogs and upsetting his pack status.

My vet gave me a Rejensa sample, which you must have made available to her. This was very helpful to me because all other glucosamine products Festus simply did not like. He would spit them all out! Either he really likes Rejensa, or he is eating them quickly out of competition with the other two dogs in the house who are taking it at the same time.

Within one week, Festus showed remarkable improvement! Suddenly he was off the bed, no longer moping around. He was having fun, wanting to go for walks and beginning to interact with the other dogs. What a glorious change in my old boy!

Not only was he more active, but he became increasingly ornery also. He became more vocal and a little bossy. Quickly his training to pick things up off the floor went into full gear. He was knocking things off the table just so that he could pick them up and bring them to me to get a treat! What an improvement!

I cannot thank Rejensa enough for returning my Festus to me. Everyone who meets him cannot believe he is 13 years old. Other than his gray scruffy hair, no one would know his age because he is still extremely bright and active.

If you need a very well-trained service dog to be a spokesman, Festus is ready and waiting!

Mary L., Pet Owner

video 6 screen shot

Jazz, Large Mixed Breed, age 11

Jazz is a 60-pound mixed breed (golden lab, husky, other?) and was a rescue from a veterinary clinic. As you can expect with a husky mix, she has been a very active dog. She loves her daily one-hour walks.

I noticed Jazz was slowing down and that she wouldn’t come up the stairs on her own. I had to use a leash each time to help bring her inside… she was struggling.

I heard about Rejensa and tried her on it... 1 chew a day. After day 15, I noticed a difference, and I was very impressed that she went up the stairs on her own. So happy to see that she has her pep back into her step!

Oriana P., Pet Owner

video 7 screen shot

Jamie, Bichon Frise, age 17

My bichon frise has Cushing’s disease and is on Trilostane and Gabapentin daily.

Watch video for results.

Kim D., Pet Owner

video 9 screen shot

Zoey, Toy Poodle, age 14

Zoey has arthritis, is slow moving and would no longer jump on the couch, take long walks, or play much. We started her on Rejensa, and the second video was taken 2.5 weeks later. Now she doesn’t hesitate to jump and will join in a game of tug and war with the other dogs again.

Andrea A., Pet Owner

Giavanna

Giavanna, age 13

Our Giavanna has difficulty getting around. I help her up the stairs and on the couch. Our vet gave us a sample of Rejensa joint care chews a while back… which I never used because I figured “she is on a glucosamine already, why try this?”

And so… I had a conversation with our vet about Gia and her joints and other health issues and she asked me if I tried Rejensa. I told her my thoughts and she suggested I try it. So I did.

About a week after giving Gia Rejensa, I noticed it was easier for her to get up from lying down and easier for her to get up and down the stairs. She is more playful than she’s been in years. She grabs toys and shakes them now and even "tries" to chase squirrels with her little brother Jack.

Overall, she seems happier and more comfortable since starting Rejensa.

Stacey D., Pet Owner

video Winter Snow screen shot

Winter Snow

Meet Winter Snow.

After 2.5 weeks of taking Rejensa.

This is a huge improvement.

He loves them!

Courtney C., Pet Owner

Truman

Truman, Sheepadoodle, age 9

Truman is an 80lb Sheepadoodle and has been a therapy dog since 2015. He comes to work with me at a K-12 public school.

About 2 years ago we noticed some issues with Truman getting up. When he would run, his hips and legs seemed to give out or become weak to the point he would sit, and we would have to pick him up or wait for him to rest before he could walk.

I contacted his veterinarian at Monongahela Animal Hospital, and they prescribed Rejensa joint care chews. Almost instantly, Truman showed improvements. He showed little to no issues getting up, walking and running. He takes one and a half chews of Rejensa every morning and continues to seem strong and comfortable. He takes a 30–45-minute walk every day and walks around schools with tile floors with ease. He also takes long car rides almost daily and can still get in and out of the car with limited or no assistance.

I am very grateful that Truman has Rejensa to keep him mobile, happy and healthy.
Thank you.

Samantha G., Pet Owner

Officer Sam

Officer Sam, German Shorthaired Pointer, age 7

Officer Sam is a working explosive detecting dog.

About a year ago he slightly tore his ACL. We opted to try three (3) protein rich plasma injections along with using Rejensa joint care chews.

He continues to take Rejensa daily and he jumps and runs normally. He’s a very active dog and Rejensa seems to be working very well.

Dave N., University of Pittsburgh Police Department

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