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 4.8 out of 5 stars
222
$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

4.7/5
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

Food Form

Supplement

Health Feature

Muscle Care, Immune Support, Nerve Care
2
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 10-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 10-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 10-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 10-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 10-lb bag
Formula 707 Calming Apple Flavor Pellets Horse Supplement, 10-lb bag

Formula 707 Calming Apple Flavor Pellets Horse Supplement, 10-lb bag

Rated 4.4 out of 5 stars
186
$80.84Chewy Price
($1.02/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

4.4/5
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
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
84
$90.20Chewy Price
($0.85/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.5/5
Great

Effectiveness

4.5/5
Great

Ingredients

4.6/5
Excellent

Long-Term Effects

4.4/5
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

Food Form

Supplement
4
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 4.7 out of 5 stars
120
$15.75Chewy Price
($0.25/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.2/5
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

Food Form

Supplement

Health Feature

Calming
5
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
60
$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

4.5/5
Great

Long-Term Effects

4.4/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Vitamin E, Selenium

Food Form

Supplement

Health Feature

Muscle Care, Immune Support, Nerve Care
6
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub
Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub

Farnam Quietex Focusing & Calming Hay Flavor Pellets Horse Supplement, 1.62-lb tub

Rated 4.5 out of 5 stars
34
$27.99Chewy Price
($1.08/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

4.0/5
Great

Long-Term Effects

4.4/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Corn Starch, Glucose, Glycerin, Malt Syrup, Maltodextrins

Food Flavor

Hay

Food Form

Supplement
7
Oralx Calm & Cool Daily Calming Hay Flavor Pellets Horse Supplement, 12-lb pail
Oralx Calm & Cool Daily Calming Hay Flavor Pellets Horse Supplement, 12-lb pail
Oralx Calm & Cool Daily Calming Hay Flavor Pellets Horse Supplement, 12-lb pail

Oralx Calm & Cool Daily Calming Hay Flavor Pellets Horse Supplement, 12-lb pail

Rated 4.7 out of 5 stars
31
$49.99Chewy Price
($4.17/lb)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.7/5
Excellent

Effectiveness

4.6/5
Excellent

Ingredients

4.5/5
Great

Long-Term Effects

4.7/5
Excellent

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Grain Products, Alfalfa Meal, Beet Molasses, Valerian Root Extract, Thiamine Hydrochloride

Food Flavor

Hay

Food Form

Supplement
8
Grand Meadows Grand Calm Pellets Horse Supplement, 5-lb tub
Grand Meadows Grand Calm Pellets Horse Supplement, 5-lb tub

Grand Meadows Grand Calm Pellets Horse Supplement, 5-lb tub

Rated 4.3 out of 5 stars
18
$58.90Chewy Price
($0.74/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

4.5/5
Great

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Theanine, Magnesium Oxide, Magnesium Carbonate, Magnesium Chelate, Organic Magnesium

Special Diet

With Grain

Food Flavor

Herbs & Spices
9
Finish Line Thia-Cal Liquid B1 Calming Liquid Horse Supplement, 128-fl oz bottle
Finish Line Thia-Cal Liquid B1 Calming Liquid Horse Supplement, 128-fl oz bottle
Finish Line Thia-Cal Liquid B1 Calming Liquid Horse Supplement, 128-fl oz bottle
Finish Line Thia-Cal Liquid B1 Calming Liquid Horse Supplement, 128-fl oz bottle

Finish Line Thia-Cal Liquid B1 Calming Liquid Horse Supplement, 128-fl oz bottle

Rated 4.3 out of 5 stars
24
$31.99Chewy Price
($0.25/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.7/5
Excellent

Effectiveness

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Long-Term Effects

4.7/5
Excellent

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Calcium 100mg - 160mg, Salt 2800mg - 3200mg, Sodium 1000mg - 1400mg, Potassium 1500mg, Magnesium 100mg

Special Diet

Flax-Free, Grain-Free, No Corn No Wheat No Soy

Food Form

Supplement
10
Formula 707 Calming Paste Horse Supplement, 30-cc syringe
Formula 707 Calming Paste Horse Supplement, 30-cc syringe
Formula 707 Calming Paste Horse Supplement, 30-cc syringe
Formula 707 Calming Paste Horse Supplement, 30-cc syringe

Formula 707 Calming Paste Horse Supplement, 30-cc syringe

Rated 5 out of 5 stars
21
$15.75Chewy Price
($7.88/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage and Administration

4.6/5
Excellent

Effectiveness

4.7/5
Excellent

Ingredients

4.7/5
Excellent

Long-Term Effects

4.6/5
Excellent

Is this horse calming supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients: L-Tryptophan, Thiamine HCL, Magnesium., Inactive Ingredients: Dextrose, Cane Molasses

Food Flavor

Apple, Fruits & Vegetables

Food Form

Supplement