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Steadfast Equine


Product Description

  • Steadfast Equine is the only joint supplement for horses on the market that utilizes Natural Eggshell Membrane® (NEM®), allowing your horse the most bioavailable source for glucosamine, chondroitin and hyaluronic acid.
  • As the only joint supplement for horses that includes TêlaFIRM, Steadfast Equine offers your horse the very best, researched backed, double chelated mineral blend accessible.
  • Steadfast Equine has been utilized in numerous studies evaluating structural and joint health with exceedingly positive results, ensuring its efficacy.
  • This original, joint and structural support supplement is patented by the U.S. Government, ensuring label accuracy and allowing peace of mind that Steadfast Equine will work as indicated.
  • Available in convenient pouches, Steadfast Equine joint supplements for horses come to you in pre-measured, average daily dose packets for easy feeding and storage.
  • Purchase in Ride for a Green World packaging and save money while helping the environment!  

If you are frustrated sorting through the plethora of joint supplements available for horses, then Arenus is excited to end your search with Steadfast Equine.  This patented formulation contains Natural Eggshell Membrane® (NEM®) and TêlaFIRM, two components not found in any other equine supplement on the market.  These two ingredients combine to provide your horse with the most bioavailable source of glucosamine, chondroitin, collagen, hyaluronic acid and chelated minerals offered.

NEM, very simply put, is the thin membrane located on the inside of an eggshell.  This membrane is a naturally occurring matrix of many joint and structural support components found as manufactured ingredients in other supplements.  In NEM, these components stem from a natural protein source, meaning they are well digested and can be fully utilized by your horse.  In a human study evaluating NEM use in the treatment of chronic pain associated with knee and hip osteoarthritis, patients reported significant improvement in both pain and stiffness within 10 days [1].

Additionally, TêlaFIRM offers your horse the benefit of highly advanced, production animal research.  This proprietary, double chelated trace mineral system was developed to address the chronic, structural breakdown issues experienced within the industry and it succeeded.  TêlaFIRM has been linked to profound clinical benefits such as increased bone breaking strength, decreased tendon, ligament and cartilage pathology and decreased incidence of synovitis [2] [3].  The organic formulation ensures resistance to the stomach’s acidic environment providing safe passage to the hindgut and optimizing absorption. 

In its finished form, Steadfast Equine has been utilized in multiple research studies demonstrating its effectiveness in both the prevention and treatment of OA and lameness by reducing pain, inflammation and the degradation of cartilage associated with these conditions [4].  No other equine joint supplement available offers the unique formulation and scientific backing of Steadfast Equine, making it the only choice for your horse’s total structural support needs.

Steadfast Equine is now available as part of our Ride For a Green World initiative!  Learn more about this program and alternative packaging options by visiting our Ride For a Green World page.


[1] Danesch U, Seybold M, Rittinghausen R, Treibel W, Bitterlich N. NEM® Brand Eggshell Membrane Effective in the Treatment of Pain Associated with Knee and Hip Osteoarthritis: Results from a Six Center, Open Label German Clinical Study.  J Arthritis. 2014; 3: 136.

[2] Dibner JJ, Quiroz MLM, Richards JD. Benefit of MINTREX P blend or organic trace minerals on the tibial dyschondroplasia, synovitis and pododermatitis in heavy weight tom turkeys. Abstract presented at: Poultry Science; July 16-19; 2006; Edmonton, Alberta.

[3] Zhao J, Harrell R, Greiner L, Allee G, Knight C.. Chelated trace minerals support sow reproduction.  Feedstuffs. 2012; 84: 86-28.

[4] Wedekind KJ, Coverdale JA, Hampton, TR, Atwell CA, Sorbet RH, Lunnemann J, Harrell RJ, Greiner L, Keith NK, Evans JL, Zhao J, Knight CD.  Efficacy of an equine joint supplement, and the synergistic effect of its active ingredients (chelated trace minerals and natural eggshell membrane), as demonstrated in equine, swine and an osteoarthritis rat model.  Animal Physiology. 2015; 7: 13-27.


Frequently Asked Questions


                                                                                          DOSING CHART:

Steadfast Equine 60ct

Type of Horse/Weight

Recommended Dosing


Servings per Container


Recommended Dosing


Servings per Container


Horse (901-1400lb/459-638kg)

2 Packets


1 Packet


Miniature (175-350lb/75-158kg)

½ Packet


¼ Packet


Ponies (351-900lb/159-458kg)

1 Packet


½ Packet


Draft (>1400lb/>638kg)

2 ½ Packets


1 ½ Packet



                                       PRICE PER DAY:

                                          At one packet per day dosing.




Steadfast Equine 60ct



Product Videos

3 Day Event Rider Lellie Ward on Steadfast and Assure by Arenus 00:46

3 Day Event Rider Lellie Ward on Steadfast and Assure by Arenus

  • 3 Day Event Ri...
    3 Day Event Rider Lellie Ward on Steadfast and Assure by Arenus
  • Barb Crabo aid...
    American Eventing Champion Barbara Crabo talks about her succe...
  • Steadfast Equi...
    Joint health supplement for horses.

Additional Information


For use in horses and other equids only. Keep out of reach of children. In case of accidental overdose, consult health professional immediately. This product should not be given to animals intended for human consumption.

Safety for use in pregnant animals or animals intended for breeding has not been proven. If condition worsens or does not improve, stop product administration and consult your veterinarian immediately.

Store product in a cool, dry place.


Loading Period: Administer 2 packets per 1100lb of body weight (or see dosing table), alone or with feed, daily for 2-4 weeks.

Maintenance: Administer 1 packet per 1100lb of body weight (or see dosing table), alone or with feed, daily.

If palatability issues arise, add small amounts of water, oil or molasses to encourage acceptance.

It is recommended that you consult your veterinarian for specific recommendations prior to adding Steadfast Equine, or any supplement, to your horse’s daily regimen.


Active Ingredients per (2) 25g Packets:
TêlaFIRM® EC……………………………………………3750mg
Ascorbic Acid…………………………………………….1000mg

Inactive Ingredients:
Alfalfa meal, dried molasses, flax seed oil, mineral oil, mixed tocopherols.

Product Reviews

Write Review

  1. Go Girl!

    Posted by Unknown on Apr 3rd 2018

    My mare is 23. She's been on other supplements, but Steadfast outshines them all! Her overall way of going has become noticeably more fluid in a fairly short time.

  2. Love all Arenus Products

    Posted by Unknown on Mar 21st 2018

    I have used Arenus products before. I loved the Assure Guard Gold. I was doing my research for supplements to help joints for my up and coming Barrel horse. Someone had posted that they loved the Steadfast. I figured I’ve used your stuff before, why not try this? So far I am pleased with the results and plan on continuing feeding this supplement.

  3. Great product!

    Posted by Unknown on Jan 11th 2017

    Been utilizing on a filly (now a mare) post botched OCD lesion surgery. Her hock looked worse (over a year!) than before the surgery. The hock will never look "normal", but this product has made a vast difference when nothing else (including injections) has worked.

  4. Steadfast Worked Like a Charm

    Posted by Stan Smith, B&B Stables on Sep 21st 2016

    We have used Steadfast for several years with very positive outcomes. Clyde, Example #1: Clyde had been sore and unhappy for several months. Two vets diagnosed him with premature arthritis at age 8. After using Steadfast, Clyde became sound and comfortable. It was a night and day difference. Magic, Example 2: Magic returned to our stable at the age of 21. As a breeding stallion with nearly 100 get and a performance horse, he had more than his share of mileage. His aches and pains were very apparent and we retired him. We put him on Steadfast to see if he could be more comfortable. It worked and HOW! Gradually, Magic voluntarily moved more and more, started bucking and farting like a youngster. We put him back to work and he comfortably lived 5 more years. I attribute much of his improvement to Steadfast. Harmony, Example 3: Harmony was a performance horse with an impressive show record. Age and hard work was starting to take a toll. Steadfast was added to her ration and she was a happy camper. After about a year we removed Steadfast from her diet and she almost immediately demonstrated the aches and pains as before Steadfast. We put her back on Steadfast and she again improves. I'm a believer in Steadfast--especially for older horses or those with joint issues.

  5. Skeptical Trainer Won Over

    Posted by Marcy V.M. on Sep 8th 2016

    As a trainer I have been talked into trying many joint supplements over the years, mostly with very little results seen. 7 or 8 years ago I started using Steadfast Equine and was impressed! Although it is mostly used for joint issues the first horse I used it on had quarter crack issues. I believe Steadfast is what allowed his cracks to heal so that I could keep showing him. And after I sold him I heard that he was extremely body sore when the new owners showed him (he was not kept on steadfast at his new home) and so that to me was even more proof that steadfast was working as a preventative to soreness as well!

  6. A Great Product

    Posted by Carol S. on Sep 7th 2016

    I have been using Steadfast for my reining horse since I bought him three years ago. He's ten this year and shows no signs of soreness or hesitancy when doing his job. He has never had his hocks injected which is pretty amazing for a performance horse his age. I plan on continuing his daily dosage of Steadfast to keep him sound for years to come.

  7. Best Product I Have Ever Used!

    Posted by Unknown on Sep 7th 2016

    I have used Steadfast for about 5 or 6 years and been very impressed. After using other products to no avail Steadfast has really my reiners. They are much more confident going into the stop and I have had far fewer tendon, ligament and bone issues in addition to much greater time between injections. My old reiner was 13 when i sold him and the vet said that his joints looked like they belonged to a 4 year old let alone a 13 year old reiner!

  8. Skeptic Turned Supporter

    Posted by Lisa J on Mar 22nd 2016

    I'm a skeptic when it comes to supplements - I feel like I've tried every form of joint supplements for my horses over the years and haven't ever found something that really does the job. After having horses on other joint supplements and transitioning them to Steadfast, I have noticed a HUGE difference in my vet bills - for the better! Time between joint injections has increased and my pocket book is very, very happy. I also love all the research Arenus has on all its products, Steadfast included, and the individual serving packets are helpful to know my horses are getting the right dosage every time. The entire Arenus team is incredibly helpful, any questions you have about your horse they're more than happy to help!

  9. Perfect for treatment, maintenance and prevention!

    Posted by Unknown on Mar 17th 2016

    I was introduced to Steadfast by Travis Wigen, who incorporates it into his reining horse training program, and have since come to swear by it. Not only have I seen it work wonders as both treatment and maintenance on my older horses with longstanding joint and soft tissue problems, but also as preventive tool for my prospects as they start their careers as reining horses. I'm a huge advocate for the organic formulation of the product's compounds, and the extensive research, development and trials it has undergone to prove its effectiveness. My only wish is that I would've found this product sooner, before wasting money on personal trials and errors on products whose results fall far short in comparison.

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