Best MSM For Horses: 2020 Review

Best MSM For Horses

MSM is a naturally occurring sulfur compound well-known for its antioxidant properties and the ability to help support stiffness and discomfort associated with exercise and normal daily activity in horses. 

MSM also has amazing anti-inflammatory properties that help to relieve your horse from all kinds of inflammations, swelling, and pain.

There are many MSM products available for horses. Not sure which MSM product is right for your horse? We have compiled top 5 best MSM for horses to help you choose the best product for your horse's needs. 

So without further ado, let's get started!

Best MSM For Horses Comparison Chart

ImageProduct NameWeightRatingPrice
Nutramax Cosequin Equine Optimized With MSM3 poundscheck best pricecheck best price
Our Review
Animed Pure MSM Available in 1, 2.25, 5, 10, and 20 poundscheck best pricecheck best price
Our Review
Vita Flex MSM Horse Joint Supplement Available in 1, 4, 10 poundscheck best pricecheck best price
Our Review
Select The Best MSMAvailable in 2 or 4 poundscheck best pricecheck best price
Our Review
Horse Health Joint Combo Hoof & Coat8 poundscheck best pricecheck best price
Our Review

Common Ingredients in Joint Supplements


Glucosamine is one of the most common ingredients in horse joint supplements. Glucosamine is the building block of chondroitin sulfate, a specific type of polysulfated glycosaminoglycan (GAGs).

Glucosamine not only has protective role in joints that goes beyond supplying the basic building blocks for the production of new, healthy tissue, it also has the ability to block enzymes that lead to cartilage breakdown.

Chondroitin sulfate

Chondroitin sulfate is synthesized by chondrocytes, the living cells inside cartilage. Chondroitin sulfate is usually manufactured from animal byproducts, such as shark and cow cartilage. It can also be made in a lab.

Chondroitin sulfate is the building block of the much larger molecule proteoglycan (PG). It also stimulates the production of new cartilage while inhibiting the enzymes that break down cartilage similar to glucosamine. 

MSM (methylsulfonylmethane )

MSM is very popular for its antioxidant and other properties which support healthy joints, skin and coat, hooves, the respiratory tract, and other tissues in horses.

MSM also provides a highly usable form of sulfur that plays critical roles in the formation of proteins such as enzymes, hormones, and immune cells and connective tissues. It also plays an important role in the formation of connective tissues such as bones, tendons, and ligaments.

MSM For Horses Buying Guide

Selecting a quality MSM supplement for your horse can be challenging when the market is overloaded with all kinds of products. But consideration of a few things can overcome the selection problem.

You can evaluate MSM supplement against some criteria that suits you the best. I believe the points below are significant for selecting the best MSM supplement for horses:

  1. Price
  2. Quantity 
  3. Flavor 
  4. Type of MSM Supplement
  5. Other reviews

1. Price

The price of MSM supplements vary greatly from one manufacturer to another. Just because something costs more doesn't necessarily mean that a product is far more superior and the low or affordable product also doesn't mean it's a poor product.

Keep in mind price doesn't always determine the quality of a product. It would not be wise to choose a supplement based only on the cost. I highly recommend that you always do your own research and compare products side by side to help you find the best supplement for your horse.

2. Quantity

The quantity is also important when choosing a supplement. However, it becomes even more important when you have a large horse. With a large horse, the dosage it needs also increases. So as a horse owner, you would want to look into buying a product that is designed for large horses. When you do that, you will be able to save money in the long run. One disadvantage to this is that sometimes the powder may become clumped and hard due to constant exposure to air. Don't fret, often times the clumped powder breaks up easily. 

3. Flavor

Only the price and quantity are not sufficient for a wise selection. The flavor of the supplement is also another important attribute to consider. There is no point of getting a supplement that has both the right price and quantity if the taste of the supplement is not appealing to your horse.

This is especially important if your horse is a picker eater. Some MSM supplements are flavored while other are not. Be sure to choose the flavor your horse will love if they are a fussy eater. 

One of the most effective methods for getting your picky horse to eat their supplements is to slowly introduce the supplement. Sometimes, when you try to add a full dose of equine supplement to your horse’s food right away, they may reject it immediately.

However, if you slowly introduce the horse supplement through small, mildly increasing doses, it gives your horse more time to adjust. As you add more and more over time, eventually they get used to the taste and will start to enjoy their horse supplements.

4. Type Of MSM Supplement

Equine supplements are available in granular, powdered and pellet forms. Every horse has different preferences, so learning what your individual horse prefers and choosing supplements based on that knowledge can be immensely helpful.

Some supplements such as those high in fat, can’t be pelleted, because they won’t hold their form. The good thing is that horses usually love the taste of high-fat powders.

Supplements in paste form are generally intended for occasional use. While pastes are the perfect way to provide your horse with extra support on certain occasions, powders and pellets are designed to be administered on a daily basis.

5. Other Reviews

Apart from the price, quantity, flavor, and the type of MSM supplement, you may also want to check out how many other horse owners have purchased the supplement you are looking to buy. If the reviews are mostly positive, the product is likely a good product, but that’s not always a guarantee. 

If the reviews are negative or only a couple of people have bought it, it also doesn’t mean it’s a bad product and you should avoid it altogether. You might want to order one and give it a test run. You never know when your horse might benefit greatly from the product. Always keep in mind that every individual horse is different and results may vary.

Top 5 Best MSM For Horses

1. Nutramax Cosequin Equine Optimized with MSM

Nutramax Cosequin Equine Optimized With MSM contains a higher levels of active ingredients compared to the original formula, with the addition of high quality MSM. It is the number one veterinarian recommended joint health supplement brand for horses.

The increased amounts of ingredients came from current opinion suggesting that horses in work may benefit from higher levels of glucosamine. Additionally, some veterinarians suggest using MSM to help manage joint health.This product is a convenient way to provide MSM along with other proven ingredients in original formula.

Like people, horses can have a wide range of personality types and quirks. Some horses who can detect the slightest change in their feed and may refuse to eat. Fortunately, this supplement provides a broad spectrum joint support in a tasty powder that even the picket eaters will like.

You will love that this product is suitable for all classes of horses. The fine powder makes it easy to mix with liquids to stick to your horse's favorite feed. It contains a total of 1,400 grams or 3 pounds of supplement, which is about 84 day supply on long-term administration level of 1 scoop a day. 

The product also comes with a scoop which makes dosing easy. Each one level scoop contains 16.5 grams of the following:

  • 32 mg Manganese 
  • 7,200 mg Glucosamine hydrochloride
  • 5,000 mg MSM
  • 1,200 mg Sodium Chondroitin Sulfate 

These powerful ingredients work together to maintain your horse's joint health. keep in mind that not all MSM products are created equal and Cosequin brand is consistently high quality and contains what it says it does.

Nutramax Cosequin Equine Optimized With MSM has over 150 reviews and majority of horse owners have left positive feedback. If your horse is suffering from joint problem and has tried everything imaginable with no success, this may be the supplement your horse needs.

Click below to see what other users are saying about this product:

Amazon's Customer Ratings: 4.6 stars (151 Customer Reviews)


  • #1 veterinarian recommended 
  • Cosequin optimized with MSM
  • Great for all life stages 
  • Comes with a scoop for easy dosing
  • Contains 4 powerful ingredients beneficial for joints
  • Keeps horses from having joint problems
  • Tasty powder, great for picky eaters
  • Noticeable improvement in weeks


  • More expensive than other brands
  • Complaints about difficulty opening the container 

2. AniMed Pure MSM

Animed Pure MSM is another excellent supplement for joint pain and stiffness in horses at all life stages. This product helps to minimize inflammation and arthritis pain as well as improves connective tissue, hair, hide, hooves in horses.

This bio-available source of dietary sulfur also plays a critical role the formation of proteins such as enzymes, hormones, immune cells, and connective tissues.

Although MSM is naturally-occurring in foods such as alfalfa and whole grains, the amount of MSM from the horse's diet is unlikely to be sufficient compared to supplementing with the pure ingredient. This makes supplementation important to promote joint, cartilage and skin health.

One of my favorite things about Animed Pure MSM is that they are available in 1, 2.25, 5, 10, and 20 pounds. So you can buy the 1 pound one to try out and once you notice improvement in your horse, then you can go with the 20 pounds, which is way more cost effective.  

1 pound provides up to 30-day supply, 2.25 pounds provides up to 80-day supply, 5 pounds provides up to 160-day supply, 10 pounds provides up to 320-day supply, and 20 pounds provides up to 640-day supply. The 10 and the 20 pound supply will last you for a long time and also save you money in the long run.

You will also like that this product is not only suitable for horses, it can also be given to dogs. If you have both dog and horse, then you get one product that can benefit both pets, which is a great value for your money.

You can rest assured that you are getting a quality product for your horses and dogs as this product contains 100% MSM without any fillers. The powder will also not harden.

Animed Pure MSM has over 550 reviews on Amazon and almost all are overwhelmingly positive. If you want to see what other happy customers are saying about this product, click below:

Amazon's Customer Ratings: 4.7 stars (557 Customer Reviews)


  • Contains 100% MSM and no fillers
  • Powder will not harden
  • Great for horses at all life stages
  • Can also be given to dogs
  • Made in the USA
  • Ideal for long-term use
  • Great price


  • Some say powder can clump, but they break up easily
  • Doesn't dissolve as easy as the finer powders
  • Bitter taste

3. Vita Flex Pro MSM Joint Supplement

Vita Flex MSM Horse Joint Supplement contains only premium quality, ultra pure MSM, with no additional ingredients of any kind. This form of MSM is appropriate for both large and small animals. MSM is a form of organic sulfur found in all living organisms and is the primary metabolite of DMSO.

MSM is found in very small amounts in most vegetables, fruits, and grains, but it is easily lost due to its volatile nature. The heat and water processing of feeds and the drying of hay destroys MSM. The horse’s diet is unlikely to contain significant amounts of MSM unless it consists primarily of raw, fresh grain or forage.

You can avoid the risk of inferior products by getting Vita Flex MSM. This product is not only recommended for horse, it can also be given to dogs and cats. This supplement contains an odorless, white crystalline granules that is easy to give to your pet. You can give MSM dry or dissolve in lukewarm water first before administering to your pet.

If that's not enough to love about this this product, you'll also like that Vita Flex MSM Horse Joint Supplement comes with a scoop, which holds 10.1 grams of MSM (10,000 mg MSM). It is available in 1, 4, 10 pounds. Each pound provides up to 45-day supply. 10 pounds provide up to 449-day supply for horses. If you are giving it to a cat, dog, the product will last much longer since their needs would be a lot less than horses. That is an amazing value for your money.

This product has over 100 reviews on Amazon with 4.7 out of 5 stars. If you want to see what other satisfied pet owners are saying about Vita Flex Pro MSM, click below to read more:

Amazon's Customer Ratings: 4.7 stars (104 Customer Reviews)


  • Contains only quality MSM
  • Recommended for support of healthy joints in horse, ponies, cats, and dogs
  • Odorless, white crystalline, and easy-to-give granules
  • For all classes of adult horses
  • Reasonably priced
  • Great value for your money
  • Comes with a scoop


  • Bitter taste

4. Select The Best MSM

Are you looking for a product that provides joint support and improves blood circulation, especially for senior horses and dogs? If yes, then Select The Best MSM is an ideal formula for daily administration. 

MSM supports healthy joint function, with amazing anti-inflammatory properties that help to relieve your horse and dog from all kinds of inflammations, swelling, and pain.

Select The Best MSM is an ultra-pure 99.9% source of bio-available sulfur with no fillers, artificial colors, or flavors in this product. The product comes in a powder form and a scoop for easy dosing. Each scoop contains 10 grams of MSM. You can give the product to your horse during or after meal time.

You will like that this product is odorless, virtually tasteless, white crystalline substance which is great for picky eaters. This 4 pound bucket contains a 184 day supply for 1 adult horse. The cost of 4 pound bucket is actually a very good deal compared to other brands. 

Many horse owners have left great feedback about this product.

"My 18 year old Quarter Horse mare always made a popping sound in her hind legs whenever she walked or moved. Since putting her on MSM she no longer has any popping sounds and moves freely."

"I bought this for my senior mare and she loves the taste and how it makes her feel. She is a really happy horse!"

If you would like to know what other owners are saying about Select The Best MSM. Click the red button below to read more.

Amazon's Customer Ratings: 4.0 stars (262 Customer Reviews)


  • Supports healthy joint function for all horses and dogs
  • 4 pound bucket contains a 184 day supply 
  • Great for senior horses and dogs
  • Ultra-pure 99.9% source of bio-available sulfur
  • No fillers, artificial colors, or flavors
  • Price is reasonable
  • Manufactured in the United States


  • Some horse don't like the taste

5. Horse Health Joint Combo Hoof & Coat

If you are looking for a quality product that provides joint, hoof, and coat care for your horse? Look no further, Horse Health Joint Combo Hoof & Coat has everything you need for your horse. This product is a convenient 3-in-1 supplement for complete joint, hoof, and coat care for horses. 

It consists of powerful ingredients, glucosamine HCl, chondroitin sulfate, vitamin C, manganese and MSM to support normal joint function and collagen synthesis.

The biotin, methionine, lysine, and zinc work synergistically to provide excellent hoof conditioning. Additionally, the omega fatty acids help to support healthy skin and lustrous show ring coat. The essential fatty acids (Omega-3 and Omega 6) are derived from soy oil and flax seed.

This product contains all of the beneficial ingredients for a complete care without any non-beneficial fillers, so you can rest assured you are getting a safe and effective product for your horse.

If your horse is a picky eater, this highly palatable, cinnamon apple-flavored pellets would be an excellent choice. You will also like that this product is great for horses of all ages and safe to use long-term.

Horse Health Joint Combo Hoof & Coat Supplement has many positive reviews. If you want to see what other happy horse owners are saying about this product, click below:

Amazon's Customer Ratings: 4.6 stars (262 Customer Reviews)


  • Contains 3 supplements under one lid
  • Helps support normal joint function and collagen synthesis 
  • Biotin provides excellent hoof conditioning
  • Contains Omega fatty acids 
  • Highly palatable, cinnamon apple-flavored pellet
  • Good for horses of all ages
  • Safe to use long-term
  • Comes with a scoop


  • Complains that the price went up
  • Complains of broken container


Are you ready to buy the MSM supplement for your horse? Now that you’ve looked at the different MSM supplement, the pros and cons of each product, you should be able to choose the one that best suits your horse's needs.

I hope you enjoyed the article and found it helpful. If you have any questions, concerns, or thoughts. Don’t hesitate to leave them in the comments below and I will get back to you as soon as I can.

Have your horse used any of the MSM supplements mentioned in this blog post? If yes, I would love to hear what you have to share. Feel free to share your story in the comments below.

8 Comments on “Best MSM For Horses: 2020 Review”

  1. Dear Hong
    Thank you very much for your fantastic website. It is amazing that you show people where to start and what steps to take towards healthy living and looking after their favourite pets. I hope more people will know about your website and follow your guidance.
    Kind regards,

  2. Great post, so much information, I had no idea what MSM was before this but I’m pretty sure now I know everything there is to know about it thanks to your post.

  3. I have no knowledge of horses.. But I do have a close friend whose grandad has a small farm and she is always going on and on about her horses she keeps there. I enjoyed this. It gave me insight and info, and I’m sure she and her granddad could probably use this article.


    1. Hello Thomas,

      Thank you for your comment. Please feel free to share this with your friend.

      Best regards,

  4. Wow, So much great information. I normally use Finish Line for my horses because I can get it delivered to the farm. My Vet told me to buy it for my horse, but thanks to your site, now I know why. I don’t ride my horse (Thunder) in the winter as much as I do in the summer. My Vet told me that I needed it to help Thunder out in the colder months even though he doesn’t get as much exercise.

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