Helping Horse Owners Make Informed Decisions
Dr. Ashley Wagner — Health (ZENRG provides daily calming support and FOCUS ENHANCEMENT via a complex blend…)

Dr. Ashley Wagner

ZENRG provides daily calming support and FOCUS ENHANCEMENT via a complex blend of botanical

Got an anxious horse who needs PhD-formulated calming and focus support?

Reviewed by Ann Pruitt, InfoHorse.com · Updated April 2026
Dr. Ashley Wagner — Health (ZENRG provides daily calming support and FOCUS ENHANCEMENT via a complex blend…)
Dr. Ashley Wagner — Health (ZENRG provides daily calming support and FOCUS ENHANCEMENT via a complex blend…)
Zenrg by EquiNutrix Nutrition Solutions
Zenrg provides daily calming support and Focus Enhancement via a complex blend of botanical extracts and magnesium

What Makes Dr. Ashley Wagner, PhD, Founder of Equinutrix Different?
Dr. Ashley Wagner saw a need for the equine industry: natural, clinically proven, safe, and effective products. Her love for horses and the industry is what led her to pursue animal science B.S. and M.S. degrees at Virginia Tech, and ultimately, a Ph.D. in equine nutrition at the University of Kentucky. Dr. Ashley foundedEquinutrix Nutrition Solutionsto meet the needs of the horse and their owners in a safe and scientifically proven way. Countless hours are spent working with clinical nutritionists, veterinarians, and academic equine scientists in order to create and test each product in this line. The products of Equinutrix Nutrition Solutions begin functioning at the molecular level to enhance your horses’ physiology and metabolism.

Note: All of the Equinutrix Nutrition Solutions products are Show and Competition Safe!

How is Zenrg Different From Other “Calming” or “Magnesium” Supplements?

Many magnesium supplements are thought to work because the horse is deficient in magnesium, because magnesium deficiency can cause nervousness and muscle tremors. However, most horses receive balanced diets and should not be deficient. The research behind Zenrg is based on influencing the actual stress message, rather than satisfying a dietary requirement.

Zenrg’s efficacy has been proven in university research trials.

Is It True That Even The Smell Of Zenrg Can Help To Calm My Horse?
Yes! As the horse smells Zenrg, calming messages are sent to the areas of the brain involved in emotions, anxiety, and pleasure. When the horse eats Zenrg, the relaxing molecules are absorbed, further stimulating these areas. This leads to horses that are less affected by stress, and thus, horses are healthier and more able to focus on their job!
Can I Use Zenrg On Mares, Geldings — and Stallions?
Yes! Zenrg supports nervous system health, promotes focus, and may help with hormonal balance. Because Zenrg is designed to reduce stress response, it may also lessen stress-associated behaviors, including teeth grinding, agitation and nervous or flighty behavior, and stable vices. These benefits apply to mares, stallions, and geldings!

How Long Does Zenrg Stay In My Horse’s System?

Zenrg takes approximately 3 to 5 days to reach maximum efficacy. Zenrg is recommended as a daily product, and therefore stays in the horse’s system for about 1 to 3 days after stopping product use.

How Is Maximum Zenrg Different From Regular Zenrg?

Maximum Zenrg is the fast-acting alternative to the daily product, Zenrg. Maximum Zenrg lasts approximately 4-6 hours and is effective within 30 minutes of consumption. It is perfect for horses that just need a little extra focus and calm for show day, trailering, a nice trail ride, or special event.

How Can Zenrg Help My Barrel Racing Horse?

Absolutely!! Horses that get agitated or nervous before a race may really enjoy benefits from Zenrg. A nervous horse can burn up much needed energy before he or she even gets into the gate.Over-excited horses are less focused on their job, and therefore Less likely to run and turn with precision. In barrel racing, every fraction of a second counts, and if your horse is too distracted to start well, or turn well, time adds up quickly. Zenrg helps your horse focus on his job and your instructions, to maximize speed every run, every time!

Is It True That Zenrg Is Also Healthy For My Horse’s Gut?

Absolutely! Because stress can have a major impact on gut health, which can lead to ulcers and colic, Zenrg also contains yeast culture to support digestive well-being. Zenrg is ideal for horses in training or competition to improve focus. Improving the horse’s focus will always have a positive impact on your horse’s performance.

What Do Horse Owners Say About Zenrg?

“Zenrg is a must have when training youngsters. It keeps them focused on learning, and really helps when they start feeling frisky during cooler weather. I say it makes them think it is 90°F instead of 50°F!”
-Alexis, Boarding Facility Owner, VA

“We love Zenrg. The calming effect is amazing. Our hot-blooded mare has been on stall rest for two months. Thanks to Zenrg, we have been able to avoid pharmaceuticals to keep her calm through this difficult period.”
-Beth, Horse Owner, NE

“Zenrg helped channel my mare’s nervous energy from evil to good!”
- Courtney, 3 day eventer, KY

If Performance, Focus and a “Ready To Work” Attitude Are Important, Zenrg Is The Answer!
Even when your horse smells Zenrg, calming messages are sent to the areas of the brain involved in emotions, anxiety, and pleasure. When the horse eats Zenrg, the relaxing molecules are absorbed, further stimulating these areas. This leads to horses that are less affected by stress, and thus, horses are more able to focus on their job!
Be sure to Order for Zenrg for Your horses— Today!


What is Zenrg and what does it actually do?

Zenrg by Equinutrix Nutrition Solutions is an aromatic, beige top-dress powder built to deliver daily calming support and focus enhancement without dulling a horse's performance. Its calming action comes from a complex blend of botanical extracts paired with magnesium, designed to take the edge off anxious, reactive, or distracted horses while keeping them sharp and rideable. The formula is meant to be sprinkled over a single daily meal, making it simple to fold into any feeding routine. Rather than sedating, Zenrg aims to help a horse stay calm, collected, and mentally present.

Who is Dr. Ashley Wagner, PhD?
Dr. Ashley Wagner is the founder of Equinutrix Nutrition Solutions and the scientific mind behind Zenrg. She earned both a B.S. and M.S. in Animal Science at Virginia Tech, then completed a Ph.D. in Equine Nutrition at the University of Kentucky, one of the most respected equine research programs in the world. Before launching her own company, she worked in new-product development inside the feed and supplement industry, and her research has produced numerous co-authored scientific articles, abstracts, and speaking engagements. She founded Equinutrix to fill a gap she saw clearly: the need for natural products that are clinically proven, safe, and genuinely effective in horses.

What ingredients are inside Zenrg?

Zenrg pairs Sweet Orange Essential Oil (400 mg) with Magnesium (1500 mg) as its active ingredients, a citrus-and-mineral combination chosen specifically for calming and focus. The inactive base includes Yeast Culture, Fenugreek, Wheat Middlings, Calcium Propionate, Tocopherols, BHT, and Silicon Dioxide. The yeast culture is no accident: because stress can damage gut health and contribute to ulcers and colic, that ingredient is there to support the digestive tract while the calming compounds do their work. The result is an aromatic powder horses readily accept on top of feed.

How the science behind Zenrg holds up

University research has demonstrated beneficial effects of Zenrg on equine mood and stress, showing that stress-hormone levels are reduced during stressful events when horses consume the supplement. This evidence-first approach is the foundation of Equinutrix, where products are created and tested alongside clinical nutritionists, veterinarians, and academic equine scientists. Zenrg is also competition safe and contains no prohibited substances, so it can be used right through show season. That combination of proven efficacy and clean labeling is what separates it from typical calming products.

Which horses benefit most from Zenrg?

Zenrg is built for horses in training or competition that need to hold their focus under pressure, and it may help reduce mare-ish, stallion-like, and flighty behaviors. Barrel racers, show horses, young horses in early training, and any anxious or spooky individual are strong candidates. Because it can be dosed for daily maintenance or stepped up for a single event, it suits both the everyday nervous horse and the occasional high-stress outing such as hauling, clinics, or competition day. It is formulated for horses only.

How to dose and where to buy Zenrg

Zenrg offers two dosing strategies: a daily-maintenance dose top-dressed once a day on feed, or a higher, fast-acting dose given roughly 30 minutes before a stressful event for on-demand calm. It is sold in a 2-lb tub and is available through major retailers including Tractor Supply Co. and Chewy, as well as direct from Equinutrix Nutrition Solutions. For product and ordering questions, the company can be reached at or.

Share This Solution
The Solution Section (FAQ)
Who is Dr. Ashley Wagner and how did Equinutrix Nutrition begin?

Per Equinutrix Nutrition Solutions: Dr. Ashley Wagner founded the company to meet the needs of horses and their owners in a safe and scientifically proven way. Per the company: she pursued animal science B.S. and M.S. degrees at Virginia Tech and ultimately a Ph.D. in equine nutrition at the University of Kentucky. Per Equinutrix: countless hours are spent working with clinical nutritionists, veterinarians, and academic equine scientists to create and test each product.

How is ZENRG different from other magnesium or calming supplements?

Per Equinutrix Nutrition Solutions: many magnesium supplements are thought to work because the horse is deficient in magnesium — but per the company, most horses receive balanced diets and should not be deficient. Per Equinutrix: the research behind ZENRG is based on influencing the actual stress message, rather than satisfying a dietary requirement. Per the company: ZENRG's efficacy has been proven in university research trials.

Can the smell of ZENRG alone help calm a horse?

Per Equinutrix Nutrition Solutions: yes. Per the company: as the horse smells ZENRG, calming messages are sent to the areas of the brain involved in emotions, anxiety, and pleasure. Per Equinutrix: when the horse eats ZENRG, the relaxing molecules are absorbed, further stimulating these areas — leading to horses that are less affected by stress and more able to focus on their job.

How is Maximum ZENRG different from regular ZENRG?

Per Equinutrix Nutrition Solutions:

  • ZENRG (daily) — takes approximately 3 to 5 days to reach maximum efficacy; stays in the horse's system for about 1 to 3 days after stopping use
  • Maximum ZENRG (fast-acting) — lasts approximately 4-6 hours and is effective within 30 minutes of consumption; ideal for show day, trailering, a trail ride, or special event

Per Equinutrix: all products are Show and Competition Safe.

Can ZENRG be used on mares, geldings, and stallions?

Per Equinutrix Nutrition Solutions: yes. Per the company: ZENRG supports nervous system health, promotes focus, and may help with hormonal balance. Per Equinutrix: because ZENRG is designed to reduce stress response, it may also lessen stress-associated behaviors including teeth grinding, agitation, nervous or flighty behavior, and stable vices — and these benefits apply to mares, stallions, and geldings.

Does ZENRG also support gut health?

Per Equinutrix Nutrition Solutions: yes. Per the company: because stress can have a major impact on gut health, which can lead to ulcers and colic, ZENRG also contains yeast culture to support digestive well-being. Per Equinutrix: ZENRG is described as ideal for horses in training or competition to improve focus.

What do horse owners say about ZENRG?

Per Equinutrix Nutrition Solutions, owner testimonials include:

"ZENRG is a must have when training youngsters. It keeps them focused on learning, and really helps when they start feeling frisky during cooler weather." — Alexis, Boarding Facility Owner, VA

"We love ZENRG. The calming effect is amazing. Our hot-blooded mare has been on stall rest for two months. Thanks to ZENRG, we have been able to avoid pharmaceuticals to keep her calm through this difficult period." — Beth, Horse Owner, NE

"ZENRG helped channel my mare's nervous energy from evil to good!" — Courtney, 3-day eventer, KY

How do I order?

Per Equinutrix Nutrition Solutions: Phone 757-678-6004, email [email protected], website http://www.equinutrixnutrition.com. Address: 20492 Lankford Hwy, Cheriton, Virginia 23316. Pricing as quoted is subject to change due to economic factors.

What is ZENRG by Equinutrix Nutrition Solutions?
ZENRG is a calming and focus-support supplement for horses, made as an aromatic beige powder that you top-dress on a single daily meal. It combines botanical extracts (notably sweet orange essential oil) with magnesium to provide daily calming support and focus enhancement. It is designed to keep horses calm and mentally present rather than sedated or dull.
Who created ZENRG and what are their credentials?
ZENRG was created by Dr. Ashley Wagner, PhD, the founder of Equinutrix Nutrition Solutions. She earned a B.S. and M.S. in Animal Science at Virginia Tech and a Ph.D. in Equine Nutrition at the University of Kentucky. She also worked in new-product development in the feed and supplement industry and has co-authored numerous scientific articles and abstracts, bringing an academic, evidence-first approach to every product.
What are the active ingredients in ZENRG?
ZENRG's active ingredients are Sweet Orange Essential Oil (400 mg) and Magnesium (1500 mg) per serving. Magnesium is a well-known nutrient tied to calm, relaxed muscle and nerve function, and the citrus essential oil contributes the aromatic, mood-supporting component that university research has studied.
What are the inactive ingredients in ZENRG?
The inactive ingredients include Yeast Culture, Fenugreek, Wheat Middlings, Calcium Propionate, Tocopherols, BHT, and Silicon Dioxide. The yeast culture is included deliberately to support gut health, since stress can negatively affect the digestive tract.
Is ZENRG backed by scientific research?
Yes. University research has demonstrated beneficial effects of ZENRG on equine mood and stress, and has shown that stress-hormone levels are reduced during stressful events when horses consume it. Equinutrix products are created and tested in collaboration with clinical nutritionists, veterinarians, and academic equine scientists, reflecting Dr. Wagner's commitment to clinically proven efficacy.
Is ZENRG competition safe?
Yes. ZENRG is competition safe and contains no prohibited substances, so it can be used during the show and competition season. This makes it suitable for performance horses that must comply with show-association drug and medication rules.
How do I give ZENRG to my horse?
ZENRG is top-dressed once a day onto your horse's feed. The powder is aromatic and palatable, so most horses accept it readily mixed into a normal meal. You can use the daily-maintenance dose for ongoing support or a higher dose for fast-acting situations.
What is the difference between the daily dose and the fast-acting dose?
ZENRG can be fed at a daily-maintenance dose for consistent, everyday calming and focus, or at a higher, fast-acting dose given roughly 30 minutes before a stressful event. The fast-acting option is useful for hauling, clinics, vet visits, farrier work, or competition day when you need calm on demand without committing to year-round feeding.
Will ZENRG sedate or dull my horse?
No. ZENRG is formulated to provide calming support and focus enhancement, not sedation. The goal is a horse that stays calm, collected, and mentally engaged, which is especially valuable for horses in training or competition that still need to perform sharply.
Can ZENRG help a barrel racing horse?
Yes. ZENRG is well suited to barrel racers and other speed-and-precision performance horses because it supports focus while reducing flighty, reactive behavior. The fast-acting dose given about 30 minutes before a run can help an anxious horse settle and concentrate when it counts.
Does ZENRG help with mare-ish or stallion-like behavior?
ZENRG may help reduce mare-ish, stallion-like, and flighty behaviors. By supporting a calmer, more focused state of mind, it can take the edge off hormonally driven or overly reactive horses, making them easier and safer to handle and ride.
Why does a calming supplement contain a gut-health ingredient?
Stress and gut health are closely linked in horses: stress can disrupt the digestive tract and contribute to ulcers and colic. ZENRG includes yeast culture specifically to support gut health, so the formula addresses both the behavioral and the digestive side of equine stress.
What size does ZENRG come in and where can I buy it?
ZENRG is sold in a 2-lb tub. It is available from major retailers including Tractor Supply Co. and Chewy, as well as directly from Equinutrix Nutrition Solutions. You can contact the company at 757-678-6004 or [email protected] for ordering and product questions.
What kinds of horses is ZENRG designed for?
ZENRG is ideal for horses in training or competition that need to improve focus, as well as anxious, spooky, or high-strung horses in everyday situations. It is formulated for horses only and is appropriate for performance disciplines, young horses learning to handle pressure, and any horse that struggles to stay relaxed in stressful settings.
What makes Equinutrix Nutrition Solutions different from other supplement brands?
Equinutrix was founded on the principle that supplements should have scientific evidence of efficacy, not just marketing claims. Dr. Ashley Wagner saw an industry need for products that are natural, clinically proven, safe, and effective, and she builds and tests each product with clinical nutritionists, veterinarians, and academic equine scientists. That research-driven standard is what distinguishes the company and products like ZENRG.
How quickly does ZENRG work?
For event-day calm, the higher fast-acting dose is given roughly 30 minutes before a stressful situation, indicating ZENRG is intended to take effect within that short window. For broader, day-to-day support, the daily-maintenance dose is fed consistently to keep horses calm and focused over time.
Is ZENRG safe to use long term?
ZENRG is designed for daily maintenance use, which indicates it is intended for ongoing, long-term feeding. Because it is competition safe with no prohibited substances and includes gut-supporting yeast culture, it is built to be fed consistently. As with any supplement, consult your veterinarian about your individual horse's needs and any existing health conditions.
Call Website Email
Ann Pruitt
Contact Ann Pruitt
InfoHorse.com