Zesterra | Brandenburg Equine.
Zesterra | Brandenburg Equine.
Regular price $75.00
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What is Zesterra?

Zesterra is an all-natural supplement designed to support horses during times of stress, such as hauling, heavy training, foaling and during times of extreme heat or cold.

Zesterra is safe for all classes of horses including lactating mares and foals.

Zesterra stimulates appetite and water consumption safely and naturally by balancing the pH of the stomach. It can be used as a flavor enhancer for horses that reject water from new sources when being hauled to new destinations.


  • Horses with Active Ulcers or Symptoms: 10ml orally AM and PM for 14 days and then reduce to 10ml once a day for 14 Days. Move to a 5ml maintenance dose daily thereafter. When these horses come under stress give 10ml prior to the event (riding, hauling, weather change, environment change).
  •  Older Horses/Hard Keepers: 10ml orally for 10 days followed by 5ml daily until desired weight is achieved. Once desired weight is achieved, move them to the “wellness” dose of 10ml two to three times per week.
  • Ulcer Prone Horses/Horses in Rigorous Training: Follow the same protocol as outlined above for Horses with Active Ulcers.
  • Respiratory Infections/Shipping Fever: 10ml orally daily until symptoms (cough, fever) subside. If antibiotics are prescribed, a daily dose of 10ml should be used for at least 10 days past the last dose of antibiotics.
  • Environmental Stress (Extreme Heat, Cold or Disease Outbreak): Give a 10 ml dose orally prior to changes in weather or disease outbreak.
  • Colic: Give 50ml orally at the onset of colic. You may use up to 100mls. Please contact your veterinarian if colic persists.
  • Hauling: All horses: 10ml orally the day before leaving and every day while away from home.

What is in it?

Colloidal Silver, water, corn oil, guar gum, orange extract, onion extract, soybean oil, glycerin, vegetable-based fatty acids, natural apple flavoring

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent illness.

Download Zesterra Dosing Suggestions

Available Sizes:

  • 250 ML ... $75.00
  • 500 ML ... $130.00
  • Half Gal ... $350.00
  • 1 Gal ... $700.00

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Customer Reviews
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Sandra T.
United States United States

Seems to be working well

This is the first bottle I have used...traveled to South Point for WSTR...indoor stalls have to be stressful for a horse who is traveling alone with all the constant activity all around him. I started the product a week before we came and have been giving him 10ml ****** daily. He is eating and drinking well. Seems quite normal...nothing negative to say about this product. And Whizkey seems to like it which is a big plus

Brandenburg Equine Zesterra Review
Richard &.
United States United States


My daughter's horse would colic at shows. We started her on Zesterra and have not had any trouble at the last two.

Connie O.
United States United States

Zesterra results

Zesterra definitely made a difference in my horse’s performance. Gave Zesterra morning of and then 1.5 hrs out from her barrel run. She was settled, focused and didn’t balk at alley. I have used it 3 times with same dosage and timing of dosages and she worked all 3 times. Thank you!

George B.

Zesterra is great product

We have seen some positive changes in our horses behavior since using Zesterra. We had issues keeping weight on our mare for a couple years. We started using Zesterra and her weight is perfect. We couldn't be more pleased.

Cristin S.
United States United States

Zesterra to get my race mule to eat

We love Zesterra. We like to keep it on hand at all times. Works miracles with finicky eaters. Thanks P.S. Hope your doing well Troy

United States United States


Wish I would have tried Zesterra sooner. Just wish it was a little cheaper.

Kaitlan C.
United States United States


This is an amazing product!! My horse hasn't felt this good in a very long time, took care of our ulcer problem!!

Paul T.

Zesterra is good stuff!

First time trying Zesterra and just ordered my second bottle!! Keeps my grumpy geldings tummy at ease and we noticed a big difference in his appetite!! FAST shipping, too!

Jay P.

Zesterra is an amazong product!

AMAZING PRODUCT!!!!! I have a totally different horse on this stuff!

Andra A.


LOVE THIS PRODUCT. I use It when the weather changes drastically to help prevent colic and sickness, when we haul places, anytime we stay somewhere, before we run, etc! We also love our zesterra lick tubs (they aren’t on Amazon yet!)!

United States United States

Awesome product

Zesterra is the only product that worked. I am a trainer at Los Alamitos A couple of our horse tend to stop eating after works or just don’t eat enough to keep weight on during their training we have tried several products including ARS and have changed their feed a number of times all have failed I am so glad we found Zesterra this product is amazing it works Now everybody in the barn is happy and eating and looking tremendous Thank you for making a great product. If by chance you have some samples of your other products would be very interested in trying please send my way Sincerely Pat Visscher

Laura S.
United States United States


We love Zesterra, and Brandenburg Equine Therapy page makes it very easy to order. Troy only carries the best.

United States United States

Great product

I really can’t believe that this stuff works so well I have had 4 different horses not all mine but acting colicky some were extreme , I gave them 50 cc of the zesterra and within minutes these horse were all well I will always keep this on hand and I give it to my Barrel racing horses daily

Tammi K.

Product is great! Quick Shipping.

I love Zesterra. If you are looking for an equine supplement that helps with nervous horses this is amazing. I use it for hauling and have noticed a HUGE improvement. Shipping is lightening fast.

United States United States


Good fast delivery