10 Best Horse Supplements 2025: According to Reviews | Chewy

The 10 Best Horse Supplements

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How we created this horse supplement list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best horse 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 supplements.

Key horse supplement considerations

Dosage

Ease of Use

Ingredients

Results

1
Tough1 All-Natural Himalayan Rock Salt Block Horse Treat, 4.4-lb
Tough1 All-Natural Himalayan Rock Salt Block Horse Treat, 4.4-lb

Tough1 All-Natural Himalayan Rock Salt Block Horse Treat, 4.4-lb

Rated 4.8 out of 5 stars
807
$6.99Chewy Price
($1.59/lb)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.7/5
Excellent

Ingredients

4.6/5
Excellent

Results

4.6/5
Excellent

Is this horse supplement right for my pet?

Top Ingredient

Himalayan Salt

Special Diet

Natural

Food Flavor

Salt, Herbs & Spices

Farm Animal Type

Cattle, Goat, Llama & Alpaca, Sheep...
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2
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count

Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count

Rated 4.8 out of 5 stars
544
$16.97Chewy Price
($0.29/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Results

4.6/5
Excellent

Is this horse supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Oat Flour, Cane Molasses, Barley Flour, Brewers Dried Yeast, Glycerin

Food Flavor

Apple, Fruits & Vegetables

Farm Animal Type

Horse
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3
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket

Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket

Rated 4.8 out of 5 stars
331
$79.99Chewy Price
($2.50/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.6/5
Excellent

Ingredients

4.5/5
Great

Results

4.4/5
Great

Is this horse supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Psyllium Seed Husk, Wheat Middlings, Natural And Artificial Flavors, Alfalfa Meal, Dehydrated

Food Flavor

Apple, Molasses, Fruits & Vegetables, Herbs & Spices

Farm Animal Type

Horse
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4
DAC Oil Fatty Acid Coat Health Liquid Horse Supplement, 7.5-lb bucket
DAC Oil Fatty Acid Coat Health Liquid Horse Supplement, 7.5-lb bucket

DAC Oil Fatty Acid Coat Health Liquid Horse Supplement, 7.5-lb bucket

Rated 4.8 out of 5 stars
184
$41.78Chewy Price
($0.35/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage

4.9/5
Excellent

Ease of Use

4.7/5
Excellent

Ingredients

4.9/5
Excellent

Results

4.7/5
Excellent

Is this horse supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Canola Oil, Flax Seed Oil, Wheat Germ Oil, Fish Oil, Rice Oil

Farm Animal Type

Horse

Food Form

Supplement
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5
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe

Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe

Rated 4.9 out of 5 stars
244
$42.99Chewy Price
($195.41/oz)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.7/5
Excellent

Ingredients

4.6/5
Excellent

Results

4.5/5
Great

Is this horse supplement right for my pet?

Lifestage

Adult, All Lifestages

Top Ingredient

Active Ingredient: Omeprazole

Farm Animal Type

Horse

Health Feature

Digestive Health
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6
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
324
$51.84Chewy Price
($0.40/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage

4.6/5
Excellent

Ease of Use

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Results

4.6/5
Excellent

Is this horse 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
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7
Select the Best MSM Powder Horse Joint Supplement, 4-lb bucket

Select the Best MSM Powder Horse Joint Supplement, 4-lb bucket

Rated 4.9 out of 5 stars
179
$29.95Chewy Price
($0.17/serving)
Promo, Save 40% on first Autoship with code EQSUP

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Results

4.6/5
Excellent

Is this horse supplement right for my pet?

Top Ingredients

Active Ingredients per 10 grams: MSM Methylsulfonylmethane (99%) (10, 000 mg)

Farm Animal Type

Horse

Food Form

Supplement

Health Feature

Hip & Joint Support, Circulatory Care
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8
Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 5-lb tub
Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 5-lb tub
Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 5-lb tub
Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 5-lb tub
Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 5-lb tub

Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 5-lb tub

Rated 4.8 out of 5 stars
240
$14.99Chewy Price
($0.19/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.7/5
Excellent

Ingredients

4.6/5
Excellent

Results

4.5/5
Great

Is this horse supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Salt, Potassium Chloride, Sodium Bicarbonate, Calcium Carbonate, Magnesium Sulfate

Special Diet

Flax-Free, Sugar Free, Low Glycemic

Food Flavor

Apple, Fruits & Vegetables
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9
AniMed Pure MSM Joint Support Powder Horse Supplement, 5-lb tub
AniMed Pure MSM Joint Support Powder Horse Supplement, 5-lb tub
AniMed Pure MSM Joint Support Powder Horse Supplement, 5-lb tub
AniMed Pure MSM Joint Support Powder Horse Supplement, 5-lb tub
AniMed Pure MSM Joint Support Powder Horse Supplement, 5-lb tub
AniMed Pure MSM Joint Support Powder Horse Supplement, 5-lb tub

AniMed Pure MSM Joint Support Powder Horse Supplement, 5-lb tub

Rated 4.8 out of 5 stars
269
$29.99Chewy Price
($0.19/serving)
Promo, New Customers Only: Spend $49+, Get $20 eGift Card

Our ratings

Dosage

4.6/5
Excellent

Ease of Use

4.7/5
Excellent

Ingredients

4.5/5
Great

Results

4.6/5
Excellent

Is this horse supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

MSM (Methylsufonylmethane), Methylsulfonylmethane 100% (min) 28, 000mg

Farm Animal Type

Horse

Food Form

Supplement
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10
Formula 707 MultiFly Feed-Thru Horse Fly Control, 10-lb bag
Formula 707 MultiFly Feed-Thru Horse Fly Control, 10-lb bag
Formula 707 MultiFly Feed-Thru Horse Fly Control, 10-lb bag
Formula 707 MultiFly Feed-Thru Horse Fly Control, 10-lb bag
Formula 707 MultiFly Feed-Thru Horse Fly Control, 10-lb bag

Formula 707 MultiFly Feed-Thru Horse Fly Control, 10-lb bag

Rated 4.8 out of 5 stars
217
$65.99Chewy Price
($6.60/lb)

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.6/5
Excellent

Ingredients

4.6/5
Excellent

Results

4.5/5
Great

Is this horse supplement right for my pet?

Top Ingredients

Wheat Middling, Alfalfa-Dehydrated, Novaluron, Calcium Carbonate, Sodium Chloride and Calcium Propionate (preservative)

Farm Animal Type

Horse

Food Form

Pellets, Feed

Health Feature

Pest Control
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