Equine Muscle Support

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Starting at $52.00
30 days supply for 1 horse
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Support Muscle Development

Horses of all ages and workloads need amino acids to support protein synthesis, tissue growth, and repair. Hulk contains essential and limiting amino acids from two high quality protein sources to encourage lean muscle development. Hulk’s blend of pea protein and whey protein won’t make horses hot or change their energy levels. And with the addition of Gamma Oryzonal, sweet potato and fenugreek, Hulk also contains potent antioxidants for keeping muscles supple. 

Strong healthy muscles power performance, add strength and stability to the skeletal system, and help horses respond and cope with the demands of training. 

High quality protein supports muscle synthesis

Gamma Oryzonal supports lean muscle growth and repair

Contains essential and branched-chain amino acids 

Antioxidants reduce oxidative stress

Helps stimulate appetite

Promotes muscle development without increasing energy levels

What's Inside
  • Pea Protein

    Pea Protein

  • Fenugreek


  • Whey Protein

    Whey Protein

  • Gamma Oryzonal

    Gamma Oryzonal

  • Sweet Potato

    Sweet Potato

  • Threonine


  • Methionine


  • Lysine


  • Leucine


Horse Show Safe

Contains no prohibited substances

Lab Tested

Drug screen by FEI recognized laboratory


Picky eater approved

Key Ingredients

  • Pea protein
  • Whey protein
  • Lysine
  • Threonine
  • Methionine
  • Fenugreek
  • Sweet potato
  • Gamma Oryzonal
  • Leucine
Product Label


<1,200lbs: Administer 1 scoop daily
>1,200lbs: Administer 2 scoops daily



Small Bag (1.19lbs)

120 DAYS

Large Bag (4.76lbs)


Active Ingredients per 18.10g (one scoop): Proprietary blend of pea protein, whey protein, lysine, threonine, methionine, fenugreek, sweet potato, gamma oryzonal, and leucine.


One scoop = 18.10g.  Best results obtained with continued use.  To maximize freshness, store in a cool dry place, out of direct sunlight, with bag closed when not in use. 

<1,200lbs: Administer 1 scoop daily
>1,200lbs: Administer 2 scoops daily



  • Safe use in pregnant animals or animals intended for breeding has not been proven.
  • If animal’s condition worsens or does not improve, stop product administration and consult your veterinarian.


  • For animal use only.
  • Keep out of reach of children.
  • In case of accidental overdose, contact a health professional immediately.
  • Should not be used for animals intended for human consumption.

Equine Elixirs’ liability for use of this product shall not exceed this product’s purchase price.  Equine Elixirs shall not be liable for any consequential or incidental damages resulting from use of this product.


Equine Elixirs, Inc.
Palm Beach, FL 33480
[email protected]

Research and Testing

Comprehensive prohibited substance screen performed by LGC Science, Inc., an FEI recognized laboratory, and the laboratory that performed the FEI drug testing for the 2016 Rio Olympics. For more information visit the following sites:

LGC Performs FEI Drug Testing for Rio Olympics

FEI Laboratories


McKibbin LS, Cheng RSS. Systemic d-phenylalanine and d-leucine for effective treatment of pain in the horse. Can Vet J. Feb 1982;23(2):39-40.


Graham-Thiers PM, Kronfeld, DS. Amino acid supplementation improves muscle mass in aged and young horses. J Anim Sci. 2005 Dec;83(12):2783-8.

Graham PM, Ott EA, Brendemuhl JH, TenBroeck SH. The effect of supplemental lysine and threonine on growth and development of yearling horses. J Anim Sci. 1994 Feb;72(2):380-6.


Graham-Thiers PM, Kronfeld, DS. Amino acid supplementation improves muscle mass in aged and young horses. J Anim Sci. 2005 Dec;83(12):2783-8.

Graham PM, Ott EA, Brendemuhl JH, TenBroeck SH. The effect of supplemental lysine and threonine on growth and development of yearling horses. J Anim Sci. 1994 Feb;72(2):380-6.

Gamma Oryzonal

Saghar Eslami. Effects of gamma oryzanol supplementation on anthropometric measurements & muscular strength in healthy males following chronic resistance training. In. J. Med. Res. 2014 June 139(6): 857–863

Whey protein

Daniel West.Whey Protein Supplementation Enhances Whole Body Protein Metabolism and Performance Recovery after Resistance Exercise: A Double-Blind Crossover Study. Nutrients: 2017 Jul; 9(7): 735.

Pea protein

Amy Banaszek. Sports (Basel). The Effects of Whey vs. Pea Protein on Physical Adaptations Following 8-Weeks of High-Intensity Functional Training. 2019 Jan; 7(1): 12.

Why the long face? We have answers to your questions right here.


Can’t find what your looking for? Contact Us

Will hulk help with weight gain?

Yes! Hulk helps increase weight gain without increasing energy levels or making horses hot. And Hulk is safe for metabolic horses because of its extremely low sugar and starch content. If you are looking for ways to add healthy weight you should also consider Symbiotic which is a probiotic that enhances nutrient absorption. 


Is Hulk more effective than rice bran?

Yes! When it comes to building muscle and maintaining weight, Hulk is definitely better than rice bran. People feed rice bran because it contains gamma oryzonal, which is known to help increase muscle mass. Hulk not only contains highly concentrated gamma oryzonal, but also many other amino acids and proteins making it an even better way to create lean muscle without affecting energy.


Is Hulk beneficial for horses with IMM (equine immune-mediated myositis)?

Yes! IMM is an autoimmune issue with rapid onset. While horses can be treated with steroids and antibiotics, long term maintenance and treatment requires protein supplementation to help rebuild muscle. Hulk's combination of pea and whey protein contain the necessary essential and limiting amino acids to help build and repair lean muscle mass.  Given the autoimmune component of IMM, Immunox can support your horse's immune system while also reducing oxidative stress throughout the muscles.


Is it OK to give more than 1 or 2 scoops a day?

Yes. If you want to help increase your horse's appetite or provide additional support for muscle development it is perfectly safe to feed up to 4 scoops daily.


What's the difference between Hulk and Immunox?

Hulk is a combination of proteins designed to promote the development of lean muscle mass. Immunox contains Vitamin E and other anti-inflammatories designed to reduce oxidative stress throughout the muscles to help keep them supple.  You can read more about Immunox here.


What is the consistency of Hulk?

Hulk is a fluffy powder that smells like maple syrup. Most horses gobble it right up!


Is Hulk a good option for a senior horse that is a hard keeper?

Hulk is great for senior horses and hard keepers. It will help stimulate their appetite which will ultimately help them put on and maintain more weight. If you are looking for a supplement that is high in protein and fat (without the sugar and starch) you can also consider adding Ulceraser to their diet. This is a great way to add extra healthy calories. 


Do you offer farm incentive programs?

Yes.  For barns buying in bulk please email us at [email protected] to discuss eligibility and incentive structure.

Where do you ship from?

All orders ship from our warehouse in Wellington, FL.


Do you have sales or promo codes?

No. We do not have sales or promo codes because we offer the highest quality product at the lowest possible price year round.

Do you have sample sizes of the supplements?

No.  The reason we do not have sample sizes is because the average time frame for seeing an improvement is generally 2-3 weeks so for people wanting to sample the products we suggest starting with the 30 day supply.

Within just a few weeks of starting my horses on Hulk I noticed a significant improvement in their muscle tone.

"Within just a few weeks of starting my horses on Hulk I noticed a significant improvement in their muscle tone. Hulk has also been helpful in post workout recovery especially during competitions."

Anna Buffini

USA Dressage Team Rider
We started using Hulk in the fall, and we’ve noticed a difference with our young horses, rehabbing horses and recent imports.

"Usually, these horses lack muscle and topline, and Hulk helps speed up that process. We see our training go farther. We are longtime users of Equine Elixirs, and we’ve found that all of their products are palatable."

John French

Top Hunter Rider/Trainer
Hulk has improved the topline and muscling on many of our horses, both young and old.

"It is our go to supplement for all of our imports, as they usually arrive needing to gain weight and build muscle. The difference is quickly noticeable. A lot of topline supplements will make the horses “hot,” but this is never an issue with Hulk."

Kianna Noël

Educated Guess LLC
I keep all of my show horses on Hulk.

"I keep all of my show horses on Hulk. It has helped them build muscle and maintain a healthy weight while competing. "

Audrey Schulze

Top Grand Prix Show Jumper
Hulk has improved our horses' ability to build and maintain topline and muscle.

"Hulk has definitely contributed to their ability to jump in proper form which is a key aspect of their overall performance. "

Jacob Pope

Top Hunter/Jumper Rider and Trainer