Backed by Horse & Livestock Owners Who Live It Every Day

From ulcer-prone performance horses to stressed calves, our formulas support digestive health, reduce setbacks, and help animals stay focused, feeding, and feeling their best — naturally.
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Ulcer & Gut Health Support
Zesterra® helps buffer excess acid and support total digestive wellness.

Helps Prevent Scours & Acidsosis
Supports rumen pH balance during stress, transport, and transition.

All-Natural Stress Support
All-natural formula keeps horses calm, consistent, and on feed — from training to trailering.

Decreases Risk of Shrink
Helps maintain feed and water intake through challenging conditions.

Safe For All Classes of Horses
Gentle and effective — formulated for every stage of life, from foals to seniors.

Used With Confidence by Producers Everywhere
Backed by cattlemen across the U.S. & Canada; safe for use in all classes of cattle.

The Choice of Horse and Livestock Professionals Across North America

Real stories. Real results. See what horse and cattle professionals have to say about the difference our products make.

Ready to see the difference?

Zesterra® and CattlActive® are the go-to for horse and livestock professionals for a reason — they work. Support performance, prevent and relieve ulcers, reduce setbacks, and promote optimal digestive and rumen health — naturally.

Explore the Power of Zesterra®

Browse CattlActive® Solutions

Take the Guesswork Out of Gut Health

At Pro Earth, we don’t just offer powerful products — we’re here to support you with trusted, easy-to-understand information to help you make the best decisions for your animals’ health and performance. Here’s just a sampling of the educational articles and guides we provide.

Managing Stress in Your Performance Horse

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Addressing Mineral Deficiency in Cattle

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The Role of pH in Animal Performance

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Fast Shipping

Orders placed by 2PM CT ship the same day (Mon–Fri). Orders after 2PM ship the next business day.

Expert Customer Service

Call us and you’ll reach a real person with hands-on experience using our products.

Satisfaction Guaranteed

We stand by our products. If you’re not happy, we’ll make it right—no hassle, no fine print.

All-Natural Ingredients

Clean formulas, real results. Our products are made with all-natural ingredients you can feel good about.

PHONE

1-800-254-0179

ADDRESS

PO Box 336
Aurora, SD 57002

EMAIL

orders@proearthanimalhealth.com

Pro Earth Animal Health

Every member of the Pro Earth team has a vested interest in animal health. As horse and cattle owners, we know first-hand the importance of keeping your animals healthy — whether you’re competing in the arena or counting pounds in the feedlot. This is your primary goal, and it’s ours, too. That is why we are committed to bringing you affordable, effective, all-natural products that deliver reliable, noticeable results.

Copyright © 2025 Pro Earth Animal Health