Best Horse Supplements 2026: According to Reviews | Chewy

Best Horse Supplements

Caring for a horse means paying close attention to changing needs, from joint support to coat condition and daily nutrition. The best horse supplements can help fill gaps or support specific goals, depending on your horse's routine and health. We considered ingredient quality, ease of use, and real feedback from horse owners to surface options that fit a range of care approaches, while always encouraging a conversation with your veterinarian for ongoing concerns.

Our Top Picks

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
1,261
$6.99 Chewy Price
($1.59/lb)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Dosage

4.4/5
Great

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?

Top Ingredient

Himalayan Salt

Special Diet

Natural

Food Flavor

Salt, Herbs & Spices

Farm Animal Type

Horse, Cattle, Goat, Llama & Alpaca...
View Item Details
2
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
511
$51.84 Chewy Price
($0.40/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Dosage

4.6/5
Excellent

Ease of Use

4.7/5
Excellent

Ingredients

4.6/5
Excellent

Results

4.7/5
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
View Item Details
3
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
360
$45.99 Chewy Price
($209.05/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.8/5
Excellent

Ingredients

4.5/5
Great

Results

4.5/5
Great

Is this horse supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredient

Active Ingredient: Omeprazole

Farm Animal Type

Horse

Health Feature

Digestive Health
View Item Details
4
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
437
$83.49 Chewy Price
($2.61/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

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

Food Flavor

Apple, Molasses, Herbs & Spices, Fruits & Vegetables

Farm Animal Type

Horse
View Item Details
5
Select the Best MSM Powder Horse Joint Supplement, 4-lb bucket
Select the Best MSM Powder Horse Joint Supplement, 4-lb bucket
Select the Best MSM Powder Horse Joint Supplement, 4-lb bucket

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

Rated 4.8 out of 5 stars
290
$31.74 Chewy Price
($0.18/serving)
Promo, Save 40% today with Autoship

Our ratings

Dosage

4.5/5
Great

Ease of Use

4.5/5
Great

Ingredients

4.6/5
Excellent

Results

4.5/5
Great

Is this horse supplement right for my pet?

Top Ingredients

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

Special Diet

Odor-Free

Farm Animal Type

Horse

Food Form

Supplement
View Item Details
6
Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 15-lb tub
Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 15-lb tub

Finish Line Apple-A-Day Electrolyte Apple Flavor Powder Horse Supplement, 15-lb tub

Rated 4.8 out of 5 stars
362
$32.95 Chewy Price
($0.14/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

Low Glycemic, Flax-Free, Sugar Free

Food Flavor

Apple, Fruits & Vegetables
View Item Details
7
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 4.7 out of 5 stars
337
$65.99 Chewy Price
($6.60/lb)
Promo, Buy select Horse item, get 50% off select Spray

Our ratings

Dosage

4.4/5
Great

Ease of Use

4.5/5
Great

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
View Item Details
8
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub

AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub

Rated 4.8 out of 5 stars
416
$29.97 Chewy Price
($0.24/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Dosage

4.4/5
Great

Ease of Use

4.4/5
Great

Ingredients

4.4/5
Great

Results

4.3/5
Great

Is this horse supplement right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Magnesium Oxide, Flaxseed Meal, Dl-Methionine, Stabilized Rice Bran, l-Lysine

Farm Animal Type

Horse

Food Form

Supplement
View Item Details
9
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag

Purina Animal Nutrition Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag

Rated 4.9 out of 5 stars
88
$36.99 Chewy Price
($1.48/lb)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Dosage

4.8/5
Excellent

Ease of Use

4.8/5
Excellent

Ingredients

4.8/5
Excellent

Results

4.8/5
Excellent

Is this horse supplement right for my pet?

Top Ingredients

Wheat Middlings, Dried Plain Beet Pulp, Barley, Dried Carrot, Salt

Farm Animal Type

Horse

Food Form

Supplement
View Item Details
10
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 4.7 out of 5 stars
262
$42.95 Chewy Price
($0.36/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Dosage

4.8/5
Excellent

Ease of Use

4.6/5
Excellent

Ingredients

4.8/5
Excellent

Results

4.6/5
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

Special Diet

Natural

Farm Animal Type

Horse
View Item Details
Shop All Horse Vitamins & Supplements

Frequently Asked Questions about Horse Supplements

What is the difference between electrolyte powders and plain salt blocks for horses?

Electrolyte powders have a broader blend of salts, often including sodium, potassium, calcium, magnesium, and bicarbonate, to help replace what a horse loses through work and heat. A plain salt block is primarily sodium chloride, which supports baseline intake but does not have the same mineral balance as a dedicated electrolyte. Pick the approach that fits your horse's routine, get input from your veterinarian or an equine nutritionist, and follow the label for dosing and timing.

How do daily digestive supplements compare to ulcer treatments?

Daily digestive supplements, like probiotics or fiber-based blends, are meant to support routine gut function as part of a long-term feeding plan. Ulcer treatments have a defined active ingredient and are labeled for prevention or management of ulcers. They are not interchangeable, and if you have ongoing concerns about ulcers, we recommend talking with your veterinarian.