10 Best Horse Calming Supplements 2025: According to Reviews | Chewy

The 10 Best Horse Calming Supplements

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How we created this horse calming supplement list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best horse calming supplement.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best horse calming supplements.

Key horse calming supplement considerations

Dosage and Administration

Effectiveness

Ingredients

Long-Term Effects

1
Kentucky Performance Products Elevate Maintenance Powder Vitamin E Horse Supplement, 2-lb jar
Kentucky Performance Products Elevate Maintenance Powder Vitamin E Horse Supplement, 2-lb jar
Kentucky Performance Products Elevate Maintenance Powder Vitamin E Horse Supplement, 2-lb jar
Kentucky Performance Products Elevate Maintenance Powder Vitamin E Horse Supplement, 2-lb jar

Kentucky Performance Products Elevate Maintenance Powder Vitamin E Horse Supplement, 2-lb jar

Rated 4.9 out of 5 stars
249
$51.84Chewy Price
($0.40/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.6/5
Excellent

Effectiveness

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Long-Term Effects

4.5/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

D-Alpha-Tocopheryl Acetate (Natural Vitamin E), And Dextrose

Farm Animal Type

Horse

Food Form

Supplement
2
Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle
Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle
Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle
Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle

Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle

Rated 4.9 out of 5 stars
75
$77.95Chewy Price
($0.61/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.8/5
Excellent

Effectiveness

4.9/5
Excellent

Ingredients

4.8/5
Excellent

Long-Term Effects

4.7/5
Excellent

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients: Ascorbic Acid, MSM, Apple Pectin, Brewer's Yeast, Grape Seed Extract

Special Diet

Flax-Free, No Corn No Wheat No Soy

Farm Animal Type

Horse
3
Kentucky Equine Research Nano-E Antioxidant Liquid Horse Supplement, 15-fl oz bottle
Kentucky Equine Research Nano-E Antioxidant Liquid Horse Supplement, 15-fl oz bottle
Kentucky Equine Research Nano-E Antioxidant Liquid Horse Supplement, 15-fl oz bottle
Kentucky Equine Research Nano-E Antioxidant Liquid Horse Supplement, 15-fl oz bottle

Kentucky Equine Research Nano-E Antioxidant Liquid Horse Supplement, 15-fl oz bottle

Rated 4.8 out of 5 stars
93
$90.20Chewy Price
($0.85/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.6/5
Excellent

Effectiveness

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Long-Term Effects

4.5/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Water, Vitamin E (D-Alpha Tocopherol), Lecithin, Polysorbate 80, Citric Acid

Food Flavor

Unflavored

Farm Animal Type

Horse
4
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 5-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 5-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 5-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 5-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 5-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 5-lb bag

Formula 707 Calming Apple Flavor Pellets Horse Supplement, 5-lb bag

Rated 4.5 out of 5 stars
216
$46.46Chewy Price
($1.17/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.4/5
Great

Effectiveness

4.4/5
Great

Ingredients

4.2/5
Great

Long-Term Effects

4.4/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients: Magnesium, Thiamine, L-Tryptophan., Inactive Ingredients: Rice Bran, Wheat Midds

Special Diet

Hydrolyzed Protein

Food Flavor

Apple, Fruits & Vegetables
5
Select the Best Legacy Pellets Horse Joint Supplement, 10-lb bucket

Select the Best Legacy Pellets Horse Joint Supplement, 10-lb bucket

Rated 4.8 out of 5 stars
52
$69.95Chewy Price
($0.88/serving)
Promo, Save 40% on first Autoship w/ code EQSUP

Our ratings

Dosage and Administration

4.5/5
Great

Effectiveness

4.5/5
Great

Ingredients

4.6/5
Excellent

Long-Term Effects

4.6/5
Excellent

Is this horse calming supplement right for my pet?

Top Ingredients

Active Ingredients: Yucca Schidigera (5, 000 mg), Methylsulfonylmethane (MSM) (2, 500 mg), Glucosamine (Shellfish) (1

Farm Animal Type

Horse

Food Form

Pellets, Supplement

Health Feature

Hip & Joint Support
6
AniMed Via-Calm Calming Powder Horse Supplement, 2-lb tub
AniMed Via-Calm Calming Powder Horse Supplement, 2-lb tub
AniMed Via-Calm Calming Powder Horse Supplement, 2-lb tub
AniMed Via-Calm Calming Powder Horse Supplement, 2-lb tub
AniMed Via-Calm Calming Powder Horse Supplement, 2-lb tub
AniMed Via-Calm Calming Powder Horse Supplement, 2-lb tub

AniMed Via-Calm Calming Powder Horse Supplement, 2-lb tub

Rated 4.6 out of 5 stars
131
$15.95Chewy Price
($0.25/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.4/5
Great

Effectiveness

4.5/5
Great

Ingredients

4.6/5
Excellent

Long-Term Effects

4.3/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

L-Tryptophan 1000 mg, Thiamine 500 mg, Calcium 227 mg, Magnesium 142 mg., L-tryptophan

Farm Animal Type

Horse

Food Form

Supplement
7
Uckele Gut Digestive & GI Support Formula Powder Horse Supplement, 2-lb jar
Uckele Gut Digestive & GI Support Formula Powder Horse Supplement, 2-lb jar
Uckele Gut Digestive & GI Support Formula Powder Horse Supplement, 2-lb jar
Uckele Gut Digestive & GI Support Formula Powder Horse Supplement, 2-lb jar

Uckele Gut Digestive & GI Support Formula Powder Horse Supplement, 2-lb jar

Rated 4.6 out of 5 stars
67
$52.58Chewy Price
($0.88/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.5/5
Great

Effectiveness

4.3/5
Great

Ingredients

4.4/5
Great

Long-Term Effects

4.2/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients: Hydrolyzed Collagen, Deglycyrrhized Licorice Root Extract, Mannanoligosaccharides, Silica, Glycine

Special Diet

Soy Free

Farm Animal Type

Horse
8
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply
Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply

Farnam Cough Free Equine Respiratory Health Pellets Horse Supplement, 2.5-lb jar, 70 Day Supply

Rated 4.2 out of 5 stars
128
$46.99Chewy Price
($0.68/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.3/5
Great

Effectiveness

4.4/5
Great

Ingredients

4.2/5
Great

Long-Term Effects

4.3/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients: Ginger Root 3, 970 Mg, Elecampane Root 3, 544 Mg, Kelp Meal 1

Farm Animal Type

Horse

Food Form

Supplement
9
Corta-Flx U-Gard Pellets Digestive & Gastric Health Horse Supplement, 4-lb bucket
Corta-Flx U-Gard Pellets Digestive & Gastric Health Horse Supplement, 4-lb bucket
Corta-Flx U-Gard Pellets Digestive & Gastric Health Horse Supplement, 4-lb bucket

Corta-Flx U-Gard Pellets Digestive & Gastric Health Horse Supplement, 4-lb bucket

Rated 4.6 out of 5 stars
67
$28.99Chewy Price
($0.46/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.4/5
Great

Effectiveness

4.8/5
Excellent

Ingredients

4.2/5
Great

Long-Term Effects

4.7/5
Excellent

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Inactive Ingredients: Dehydrated Alfalfa Meal, Diatomaceous Earth, Dried Cane Molasses, Gelatin, Hydroxypropyl Methylcellulose

Farm Animal Type

Horse

Food Form

Supplement
10
Kentucky Performance Products Elevate Se Vitamin E & Selenium Powder Horse Supplement, 2-lb jar
Kentucky Performance Products Elevate Se Vitamin E & Selenium Powder Horse Supplement, 2-lb jar
Kentucky Performance Products Elevate Se Vitamin E & Selenium Powder Horse Supplement, 2-lb jar
Kentucky Performance Products Elevate Se Vitamin E & Selenium Powder Horse Supplement, 2-lb jar

Kentucky Performance Products Elevate Se Vitamin E & Selenium Powder Horse Supplement, 2-lb jar

Rated 4.7 out of 5 stars
70
$64.90Chewy Price
($0.50/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.5/5
Great

Effectiveness

4.6/5
Excellent

Ingredients

4.4/5
Great

Long-Term Effects

4.3/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Vitamin E, Selenium

Farm Animal Type

Horse

Food Form

Supplement