8 of the Best CALMING Supplements for Horses

Are you at a loss to find the best calming supplement for horses? Worry no more. We are here to shed light on some of the best brands of calming supplements for horses you can buy.

Firstly, you need to know what a horse calmer is. Secondly, you need to understand why you need to use horse-calming products. Doing so explains why some equine calming products are superior to others. Let us get started.

What are Horse Calmers?

Horse calmers reduce stress-related conditions and muscle tension in horses. The calmers also increase the horse’s concentration and performance. When a horse is stress-free, it can perform under pressure. Such a horse can also learn well and compete professionally without behaving abnormally.

Calming paste for horses is fast-acting. It requires a large syringe that you insert in a horse’s mouth. Liquid and powder are slow to act.

Despite their effectiveness, the available literature does not explain how horse calmers and their ingredients work in a horse’s body. Some of the calmers’ ingredients are:

Magnesium: Produces an anxiety-reducing effect

Tryptophan: Aids in the production of serotonin that lowers stress levels
Valerian: Reduces anxiety

When feeding calming supplements to a competing horse, apply caution not to give it calmers with prohibited substances.

Why Do Horses Need Equine Calming Supplements?

Equine calming supplements are beneficial to a horse in several ways. To begin with, they give relaxation to a horse that is suffering from anxiety and stress. When a horse is anxious or nervous, it is not happy. Also, there is a high likelihood that such a horse cannot perform to your expectations.

It is hard to prevent the recurrence of stress and anxiety in horses. However, feeding your horse daily with calming supplements keeps it ready for performance every day.

One of the causes of stress in horses is the change of circumstances, especially the change of environment. A horse can also get stressed when traveling in a horsebox and attending shows. If you give your horse calmers a few days before an event, it can remain relaxed during the event.

If your horse is in heat, giving it calming horse feed, calming supplements, or calming medicine for horses keeps it under control. But, unfortunately, such a horse is excitable and dangerous.

Regarding competing horses, equine calming supplements calm down a competing horse without affecting its energy levels.

Our Top Pick

Mare Magic Calming Supplements: Best for Influencing a Quiet Disposition in Geldings and Mares (Our Rating: 4.7/5 Stars)

We pick this product as the best calming product for horses because of its several added benefits. Firstly, it calms your mare or gelding. Secondly, it improves the overall health of your horse, especially the immune system.

What are the Best Calming Supplements for Horses? Top Picks

Mare Magic Calming Supplements (Best for influencing a quiet disposition in geldings and mares) Our rating: 4.7/5 stars
Formula 707 Calming Equine Supplement (Best for reducing anxiety in nervous and excitable horses and enhancing a horse’s focus) Our rating: 4.4/5 stars
Perfect Prep EQ Training Day+ Pellets Show Safe Horse Calming Supplement (Best for creating reliable horse’s focus and stabilizing a horse’s attitude) Our rating: 4.3/5 stars

Perfect Prep Training Day Horse Calming Supplement (Best for stabilizing a horse’s attitude and improving its focus) (Amazon’s choice Award for Perfect Prep training day) Our rating: 4.1/5 stars
StressLess Hot Horse Supplement (Best for promoting a horse’s focus, calming horse’s mind, and balancing horse’s mood) Our rating: 4.3/5 stars
Hemp Horse Pellets (Best for reducing horse’s stress, aggression, and anxiety, and supporting horse’s immunity) Our rating: 4.4/5 stars

Silver Lining Herbs 20 Keep Cool Equine Calmer (Best for stabilizing a horse’s mood, helping a horse to relax and settle, and improving the focus of a horse) Our rating: 4.4/5 stars
SynChill Oral Horse Calming Gel (Best for reducing horse’s anxiety in a fast-paced environment and improving horse’s focus) Amazon’s choice award in Horse Calming Supplements by SynNutra Equine) Our rating: 4.2/5 stars

8 Best Horse Calmers Reviewed

Mare Magic Calming Supplements: Best for Influencing a Quiet Disposition in Geldings and Mares (Our Rating: 4.7/5 Stars)

Sometimes, mares can run out of control, especially when on heat. Mare Magic supplement is a product that calms such a horse for 60 days. This product influences a quiet disposition in geldings and mares. It is herbal and palatable.

The active ingredient of Mare Magic Calming supplements is raspberry leaves. This ingredient has several benefits to horses. Raspberry leaves are a rich source of niacin, magnesium, potassium, selenium, calcium, iron, vitamins E, B3, B2, B1, C, and A.

Raspberry leaves also support balanced hormones and a healthy immune system in horses. They also have a magnesium-related calming effect. The leaves are also rich in antioxidants. They facilitate a normal inflammatory response.

Raspberry leaves contain tannins, which are also beneficial to a horse. Tannins have natural astringents that clean blood and organs. Tannins also prevent infections because they have anti-viral and anti-bacterial properties. In addition, tannins maintain a healthy gut microbiome in horses. They also reduce diarrhea in horses.

Raspberry leaves also strengthen and tone uterine muscles. They may also support healthy bones and cartilage, and connective tissues.

List of product features: A natural product
Is the product veterinary-approved or not?: Not veterinary-approved

What does the product target?: Mares and geldings
Is the product breed specific?: No
Life stage in a horse that the product is for: Adult horses

Supplement form: Powder
List of major ingredients: Raspberry Leaf (Rubus Idaeus)
The volume of the product: 60 Scoops

How does the product work?: It contains a magnesium-related calming effect.
How effective is the product?: Highly effective
Our verdict on this product: This is one of the best calming supplements for horses because it has other added benefits.

Does the product have any side effects: Yes. It can induce uterus contraction in pregnant horses.
Can the product be used with other supplements and medications or stand-alone?: Consult a veterinarian before mixing any supplements and medications.
List of pros: A rich source of minerals and vitamins, supports balanced hormones and a healthy immune system in horses, has a magnesium-related calming effect, rich in antioxidants, facilitates normal inflammatory response, contains tannins, tones and strengthens uterine muscles, supports healthy bones and cartilage, and connective tissues.

List of cons: Unfit for pregnant horses, unfit for animals for human consumption
Do you need a prescription for the product: No
The dosage required and frequency: One 0.13 ounces (3.78 grams) scoop daily, two scoops in the first ten days.

How long does the product last?: 60 Days
Is the product aimed at prevention or maintenance or both?: Prevention

Formula 707 Calming Equine Supplement: Best for Reducing Anxiety in Nervous and Excitable Horses, and Enhancing a Horse’s Focus (Our Rating: 4.4/5 Stars)

Formula 707 horse supplement is ideal for anxious, nervous, and excitable horses. This product enhances the concentration of a horse during a training or working session. It creates a balance in the central nervous system of a horse.

This product has three active ingredients: L-tryptophan, thiamine (B1), and magnesium. L-tryptophan facilitates the delivery of serotonin to decrease anxiety. Thiamine (B1) aids in metabolic processes. It also reduces nutritional deficiencies. Lastly, magnesium supports calm, relaxed horse muscles.

This product does not sedate a horse. So, you can use it on a horse before or during a horse’s active session. But, do you know that sedatives are often ideal for horses in pain? So, if your horse is not in pain, train it to tolerate most activities and exercises.

Remember, your horse is always ready to get along with you. However, horses are reactionary. So, they respond to several situations. Sometimes, a horse can react strongly to a situation that hurt or scared it in the past. In such a scenario, sedatives would only be a shortcut to training the horse to fight its fears.

Giving your horse sedative-free supplements, such as the Formula 707 calming supplement, makes it possible to train your horse. The following is more information on Formula 707:

List of product features: A bucket of apple-flavored calming pellets
Is the product veterinary-approved or not?: Not veterinary-approved

What does the product target?: All horses
Is the product breed specific?: No
Life stage in a horse that the product is for: Adult horses

Supplement form: Pellets
List of major ingredients: L-tryptophan, thiamine (B1), and magnesium
The volume of the product: 40 servings

How does the product work?: delivers serotonin to decrease anxiety, aids in metabolic processes, reduces nutritional deficiencies, supports calm, relaxed horse muscles
How effective is the product?: Highly effective
Our verdict on this product: This is one of the best calming supplements because you can give it to your horse before or during an active session.

Does the product have any side effects: High doses of this product may reduce endurance capacity, give rise to acute hemolytic anemia, and nausea
Can the product be used with other supplements and medications or stand-alone?: Consult your veterinarian
List of pros: It promotes mental alertness and relaxation. Also, it is not sedative.

List of cons: High amount of this product can cause various side effects.
Do you need a prescription for the product: No
The dosage required and frequency: One, 2 ounces (56.68 grams) scoop daily.

How long does the product last?: 20 Days
Is the product aimed at prevention or maintenance or both?: Prevention and maintenance

Perfect Prep EQ Training Day+ Pellets Show Safe Horse Calming Supplement: Best for Creating Reliable Horse’s Focus and Stabilizing a Horse’s Attitude (Our Rating: 4.3/5 Stars)

If your horse is picky, it will find Perfect Prep EQ supplement pellets irresistible. This product stabilizes a horse’s attitude, slows a horse’s heart rate, and diminishes the horse’s reactivity. It also makes your horse have a reliable focus.

The effects of this product are instant. Also, the effects continue to build up over three to five days. Perfect Prep contains natural ingredients, minerals, vitamins, and amino acids. Also, it does not contain any prohibited substances. So, it is ideal for all horse-showing organizations.

How much do you know about horses’ prohibited substances? The substances are in two categories: banned substances and controlled medication. Banned substances have no legitimacy in horse competition. Unfortunately, these substances also have high abuse potential.

Controlled medicine can affect the performance of a horse. Also, it can create a welfare risk to other horses.

The Federation Equestre Internationale (FEI) advises competitive horses owners to work closely with their veterinarians to identify prohibited substances in horse supplements and feeds. The organization also warns the owners never to give their horse supplements with unknown ingredients.

Competitive horse owners can give their horses the Perfect Prep Calming Supplement. More information on this product is as follows:

List of product features: A natural-ingredient calming supplement

Is the product veterinary-approved or not?: Not veterinary-approved
What does the product target?: Competition horses
Is the product breed specific?: No

Life stage in a horse that the product is for: Adult horses
Supplement form: Pellets
List of major ingredients: Taurine proprietary blend, inositol, magnesium, thiamine, riboflavin, pyridoxine, glycine, root extract (deglycyrrhized licorice)

The volume of the product: 70 servings
How does the product work?: Taurine proprietary blend balances the horse’s brains’ excitatory neurotransmitters, inositol aids the serotonin actions, magnesium relaxes the horse’s muscles, thiamine aids metabolism, riboflavin aids in the conversion of food into energy, pyridoxine regulates horse’s mood, glycine increase muscle mass, and root extract (deglycyrrhized licorice) supports a healthy gut.
How effective is the product?: Highly effective

Our verdict on this product: This is one of the best calming supplements for competitive horses. We also like it for improving the performance of a horse.
Does the product have any side effects: High doses of this product can cause nausea and temporary diarrhea.
Can the product be used with other supplements and medications or stand-alone?: Consult a veterinarian

List of pros: stabilizes horse’s attitude, slows a horse’s heart rate, diminishes horse’s reactivity, and improves a horse’s focus
List of cons: High amount of this product can cause various side effects.
Do you need a prescription for the product: No

The dosage required and frequency: Initially, give your horse two scoops in the morning and evening for three consecutive days. Afterward, give your horse one to two scoops in the morning and evening.
How long does the product last?: 18 days
Is the product aimed at prevention or maintenance or both?: Prevention and maintenance

Perfect Prep Training Day Horse Calming Supplement: Best for Stabilizing a Horse’s Attitude and Improving Its Focus (Amazon’s Choice Award For Perfect Prep Training Day) (Our Rating: 4.1/5 Stars)

Stabilize your horse’s attitude and improve its focus daily with Perfect Prep Training Day Horse Calming Supplement. You can mix it with horse feed for ease of administration. The effects of this product are instant. Also, they build gradually over three to five days. You can opt to use it alone or mix it with other Perfect Prep calming supplements.

Perfect prep calming supplement does not contain prohibited substances. So, it is ideal for your competition or shows horse. However, you should try Perfect Prep supplement combinations well ahead of the competition day. The move enables you to identify the combination that brings out the best performance from your horse.

Do you know the disadvantages of over-supplementing your horse? This action entails feeding your horse with supplements above the recommended quantity. Even though you can do it with good intentions, its consequences are detrimental.

Over-supplementing your horse wastes your money. A horse excretes excess water-soluble minerals and vitamins. So, over-supplementing wastes your money.

Regarding vitamin A, its excess causes bone fragility, scaly skin, decreased blood clotting, and abnormal bone growth, among other health complications. On the other hand, high levels of vitamin D cause weight loss, stiffness, low feed intake, and high phosphorous blood concentration, among other complications.

So, you should mind the horse supplement ingredients whenever you opt for mixing the Perfect Prep Training Day supplement with other supplements. What else should you know about this product?

List of product features: A 2 pounds (0.9 kilograms) tub of Horses’ calming supplement
Is the product veterinary-approved or not?: Not veterinary-approved
What does the product target?: Competition and show horses

Is the product breed specific?: No
Life stage in a horse that the product is for: Adult horses
Supplement form: Powder

List of major ingredients: Magnesium, thiamine, taurine, inositol, sodium copper chlorophyllin, vitamin behave
The volume of the product: 32 Scoops
How does the product work?: Magnesium relaxes a horse’s muscles, taurine balances the excitatory neurotransmitters in a horse’s brain, inositol aids the serotonin actions, thiamine aids metabolism, and vitamin improves a horse’s athletic performance.

How effective is the product?: Highly effective
Our verdict on this product: This product is one of the best calming supplements for improving the performance of competition or show horses.
Does the product have any side effects: High doses of this product can cause nausea and temporary diarrhea.

Can the product be used with other supplements and medications or stand-alone?: You can use it with other supplements
List of pros: Stabilizes horse’s attitude, increases hoses focus, has instant effects, you can mix it with other supplements
List of cons: High amount of this product can cause various side effects.

Do you need a prescription for the product: No
The dosage required and frequency:

Pre-event level: feed 2, one-ounce (28.35 grams) scoops in the morning and night 48 hours before the event. Adjust for effect.

Maintenance level: Feed 2, one-ounce (28.35 grams) scoops twice daily for two days. Then, reduce to find the appropriate maintenance level.

How long does the product last?: Four days
Is the product aimed at prevention or maintenance or both?: Prevention and maintenance

StressLess Hot Horse Supplement: Best for Promoting a Horse’s Focus, Calming Horse’s Mind, and Balancing Horse’s Mood (Our Rating: 4.3/5 Stars)

When training, racing, showcasing or traveling with your horse, giving it StressLess Hot Horse Supplement will keep it calm, relaxed, and focused. This product has all-natural ingredients. Also, it is non-herbal. This product promotes calmness and increased receptivity for training/behavior modification.

The main ingredient of the StressLess calming supplement is casein. It is an amino protein from cow milk. Casein production involves the enzymatic reaction process that does not employ chemicals. The function of casein is to decrease a horse’s reaction to stressful situations.

Your horse should take this supplement seven days before participating in stressful activities for maximum effectiveness. The following are more details on StressLess Hot Horse Supplement:

List of product features: 11.68 ounces (331.13 grams) of horse-calming supplement
Is the product veterinary-approved or not?: Veterinary approved
What does the product target?: Training, racing, showing, or traveling horses

Is the product breed specific?: No
Life stage in a horse that the product is for: Adult horses
Supplement form: Powder

List of major ingredients: Casein
The volume of the product: 60 scoops
How does the product work?: This product contains casein that decreases a horse’s reaction to stressful situations.

How effective is the product?: Highly effective
Our verdict on this product: This product is one of the best calming supplements because it can modify a horse’s behavior, especially when facing a stressful situation.
Does the product have any side effects: No side effects

Can the product be used with other supplements and medications or stand-alone?: Consult your veterinarian
List of pros: Non-addictive, non-sedating, preservative-free, lactose-free, non-herbal, and it has a palatable apple flavor
List of cons: No known cons

Do you need a prescription for the product: No
The dosage required and frequency: Four scoops daily
How long does the product last?: 15 days

Is the product aimed at prevention or maintenance or both?: Prevention

Hemp Horse Pellets: Best for Reducing Horse’s Stress, Aggression, and Anxiety, and Supporting Horse’s Immunity (Our Rating: 4.4/5 Stars)

This all-natural product targets high-performance horses. It reduces aggression, anxiety, and stress in horses. This product also improves the immunity of a horse. It is a non-GMO supplement that relaxes a horse’s hip and joints.

Do you know the benefits of hemp oil on horses? Besides reducing anxiety in horses, hemp oil also has anti-inflammatory properties that fight joint arthritis, desmitis, and laminitis in horses.

Hemp oil also reduces the production of gastric acid in horses. So, it prevents ulcers in horses.

Hemp oil can also improve digestive health, support a healthy horse coat, and relieve skin conditions and allergies in horses.

Your horse can get the said benefits from taking Hemp Horse Pellets. The other information on this product is as follows:

List of product features: 4 pounds (1.8 kilograms) bag of hemp horse pellets
Is the product veterinary-approved or not?: Not veterinary-approved
What does the product target?: High-performance horses, ponies, and sensitive horses

Is the product breed specific?: No
Life stage in a horse that the product is for: Adult horses
Supplement form: Pellets

List of major ingredients: Hemp oil, crude protein, crude fat, crude fiber, moisture, omega 3, omega 6, omega 9, potassium
The volume of the product: 60 servings
How does the product work?: This product contains hemp oil that triggers an internal balance in horses.
How effective is the product?: Highly effective
Our verdict on this product: Hemp Horse Pellets is one of the best calming supplements because it contains hemp oil for calming horses.
Does the product have any side effects: No known side-effects
Can the product be used with other supplements and medications or stand-alone?: Consult your veterinarian
List of pros: Non-GMO, corn-free, soy-free. It reduces aggression, anxiety, and stress in horses. It also improves the immunity of a horse.
List of cons: No known cons
Do you need a prescription for the product: No
The dosage required and frequency: Adult horses: one scoop or 1.05 ounces (30 grams), Ponies and sensitive horses: Half scoop or 0.53 ounces (15 grams)
How long does the product last?: 60 days
Guarantees and warranties: 100 percent product guarantee
Is the product aimed at prevention or maintenance or both?: Prevention and maintenance

Silver Lining Herbs 20 Keep Cool Equine Calmer: Best for Stabilizing Horse’s Mood, Helping a Horse to Relax and Settle, and Improving the Focus of a Horse (Our Rating: 4.4/5 Stars)

This Silver Lining equine calmer is a horse’s mood stabilizer. If you have a high-strung horse, this product can benefit such a horse. This product enhances the performance of a horse. It aids in behavioral problem management.

Silver Lining has nervine herbs that help a horse settle, relax, and become focused. How much do you know about nervine? This word means to act on or relieve nerve disorders. Nervine herbs do not affect the mental faculties of a horse. Also, they do not affect the horse’s performance potential. Instead, the herbs increase concentration and coordination abilities in horses.

Nervine herbs target stress-related issues, such as muscle spasms, some types of horse colic, flatulence, constipation, and ulcers, among other health concerns. These herbs also have a reputation for deterring internal parasites.

So, giving your horse the Silver Lining Herbs 20 Keep Cool Equine Calmer means much more than calming it. Other information on this product is as follows:

List of product features: 1 pound (0.45 kilogram) bag of a horse-calming supplement
Is the product veterinary-approved or not?: Not veterinary-approved
What does the product target?: All horses
Is the product breed specific?: No
Life stage in a horse that the product is for: Adult horses
Supplement form: Powder
List of major ingredients: Catnip, Hawthorne, hops, chamomile, rosehips, valerian, Oregon grape, burdock, black cohosh, skullcap, lobelia, mistletoe, and echinacea
The volume of the product: 60 scoops
How does the product work?: This product contains nervines, which are calming herbs that support and maintain a normal disposition in stressed or tensed horses.
How effective is the product?: Highly effective
Our verdict on this product: This product is one of the best horse calming products because it contains nervine herbs that fight off stress-related issues in horses.
Does the product have any side effects: No known side effects
Can the product be used with other supplements and medications or stand-alone?: Consult your veterinarian
List of pros: Supports the nervous system of your horse, promotes a calm response to stressful situations, relieves tension in horses, you can use it for the daily support of your horse
List of cons: You cannot use it on mares with a third-trimester pregnancy
Do you need a prescription for the product: No
The dosage required and frequency: One scoop daily for a 1000 to 1200 pounds (450 to 540 kilograms) horse.
How long does the product last?: 60 Days
Is the product aimed at prevention or maintenance or both?: Prevention and maintenance

SynChill Oral Horse Calming Gel: Best for Reducing Horse’s Anxiety in a Fast-Paced Environment, and Improving Horse’s Focus) Amazon’s Choice Award in Horse Calming Supplements by Synnutra Equine) Our Rating: 4.2/5 Stars

If you are looking for a versatile horse calming supplement, SynChill Oral Horse Calming Gel is your match. You can give it to a horse under training, racing, trailering, and roping, among other activities.

This product is 100 percent natural. It makes your horse relax when you administer it one to two hours before an event. In return, a horse becomes more focused. In return, it can perform securely and confidently.

SynChill Oral supplement does not contain prohibited substances. So, it is ideal for show and competing horses.

List of product features: A syringe with horse-calming supplement
Is the product veterinary-approved or not?: Not veterinary-approved
What does the product target?: All horses under intensive activities
Is the product breed specific?: No
Life stage in a horse that the product is for: Adult horses
Supplement form: Gel
List of major ingredients: 5-HTP (5-hydroxytryptophan), vitamin B6, melatonin,
The volume of the product: One serving
How does the product work?: The biochemical substances in this product reduce the horse’s anxiety, even in a fast-paced environment. In addition, they increase the brain serotonin.
How effective is the product?: Highly effective
Our verdict on this product: SynChill Oral is one of the best horse calming supplements because it is rare to find calming supplements with 5-HTP, a calming biochemical.
Does the product have any side effects: Rare mild nausea and heartburn
Can the product be used with other supplements and medications or stand-alone?: Consult a veterinarian
List of pros: This product is sweet-tasting and odor-free. It fights anxiety in horses facing stressful situations.
List of cons: No known cons
Do you need a prescription for the product: No
The dosage required and frequency: Give it to a horse two to three hours before an event.
How long does the product last?: One day
Guarantees and warranties: Unconditionally guaranteed
Is the product aimed at prevention or maintenance or both?: Prevention

The Final Neigh

Horse calming supplements, such as the Mare Magic Calming Supplements, aim at reducing stress, anxiety, and nervousness in horses. Similar to human beings, horses cannot become productive under pressure.

Horse supplements are what you need to increase the performance of your horse. However, be wary of supplements with prohibited substances. Also, be mindful of sedative supplements when you expect your horse to carry on some activity after taking supplements.

Now that you know the best horse calming supplements, you can make an informed choice. You now know the best calming paste for horses and tryptophan for horses. You can opt to go through more horse calming supplement reviews for more information on the supplements that we have discussed.

Days of confusion about the best choice of calming supplements for horses to buy are over. So, go out and shop for horse-calming supplements with confidence.