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Effective Horse Deworming, Made Easy.

A natural, veterinarian-endorsed food topper proven to help treat common equine parasites with confidence and ease.

Effective Horse Deworming, Made Easy.

A natural, veterinarian-endorsed food topper proven to help treat common equine parasites with confidence and ease.
Shop Horse Dewormer

Top, Feed, Deworm.

A simple food-topper format makes deworming easy to add to your horse’s feeding routine.

Top, Feed, Deworm.

A simple food-topper format makes deworming easy to add to your horse’s feeding routine.
Shop Dewormer

Proven Where Horses Are a Way of Life.

The #1 trusted and preferred dewormer by the Amish community nationwide who depend on their horses for daily life.

Proven Where Horses Are a Way of Life.

The #1 trusted and preferred dewormer by the Amish community nationwide who depend on their horses for daily life.
Natural Horse Dewormer
Vet Recommended
Natural Ingredients
Trusted 20+ Years
Made in USA
Natural Horse Dewormer

Natural Horse Dewormer

Sold out
$18.99
$18.99 - $867.99
$18.99
$17.99
$17.99 - $825.99
$17.99
8.0oz | $2.25 / oz
Availability:
Out of stock
Availability:
Out of stock
Availability:
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Availability:
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Availability:
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All-natural powder formula. Veterinarian endorsed. Made in the USA.

Atlas Natural Horse Dewormer is proven to help manage parasite load as part of a regular horse care routine. Easy to top dress on feed, it gives horse owners a straightforward, practical option that fits into everyday care.

Each complete treatment includes the full 14-day feeding routine.

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Horse Parasites Explained by Veterinarian Dr. Paul Clemens

What do horse parasites actually do?

Horse parasites can affect far more than digestion. In this veterinarian-led video, Dr. Paul Clemens of Auburn Animal Care explains how internal parasites may impact weight, coat quality, appetite, energy, body condition, and overall horse health — and why early signs can be easy to miss. He also shares how regular monitoring, pasture management, nutrition, and a consistent deworming routine can support responsible horse care.

Independent Study Results

Strongyle egg counts dropped 88 to 100 percent.

Strongyle egg counts dropped 88 to 100 percent.

Six horses. One natural dewormer. Fecal egg count testing conducted at Michigan State University's Veterinary Diagnostic Laboratory — using the McMaster's technique, considered one of the most accurate methods available for parasite analysis.

Strongyle egg counts dropped 88 to 100 percent. Every horse tested. Maya, Butterscotch, Topper, Gidget, Cody, and Casper — real horses, documented results.

"The Strongyle numbers are greatly reduced. These test results confirm that the deworming was very successful."
— Dr. Paul Clemens, DVM, Auburn Veterinary Hospital

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Deworming Made Easy

No syringes or stressful dosing. Just add Atlas to your horse’s feed as directed.

Made with Natural Ingredients

A simple, natural formula created for horse owners who want an easier way to support parasite management.

Real Results from Horse Owners

Fed to my old horse who was always stiff and slow starting off. After one week started seeing results. I kept him on the Natural Horse Wormer for a month. My old horse looks and acts five years younger. Wow!

JY, OH

Fed to my broodmare band which usually bleach in mid-summer. None of my mares bleached after using the Natural Horse Wormer. Amazing product!

Horse breeder, MO

Fed to a pot-bellied Dutch stallion. After one dose he looked completely different! No gut, rich color hair coat. Very impressed!

M.Y., IA

Atlas Horse Health Resources

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