PLEASE NOTE: You may experience errors on our site when using Internet Explorer 10 or lower. Please consider updating your browser, or download Google Chrome.
Order within and have it by * in (edit)
Ship speed applies to in stock items, pending location. Does not include personalized items like engraving, embroidery, SmartPaks, or PortionPaks. Complete details on our Shipping Policies page.
Contact our experts 24/7: Call 1-800-461-8898

The SmartPak Experts are now SmartPak TEXTperts!

All of our supplement and product expertise is just a text away! Ask questions, manage your account, and place orders by texting 26756 from your mobile phone. Have a great ride!

Available Monday - Friday
9:00am - 5:30pm EST

By texting 26756, you're giving SmartPak your consent to text you to help resolve your issue, including automated replies, at the number you provided. To opt out, text STOP to 26756. Text HELP to 26756 for info. Msg&data rates may apply. Consent to receive texts not required to buy products. Terms & conditions and the full Text Message Privacy Policy can be found at in case you're interested.
Putting your horse's supplements on AutoShip helps you take great care of your horse, so we take great care of you with SmartPerks! When you order your horse's supplements on AutoShip, you're automatically* eligible for our FREE SmartPerks benefits, including:
  • Free ground shipping on what you want, when you want it
  • 10% off all SmartPak brand tack, apparel, and gear
  • A free Team SmartPak calendar, exclusive email offers and discounts, and more!
Learn more about SmartPerks
*At least one individual AutoShip supplement or horse's SmartPaks must be over $40. Some exclusions apply.
Visit or call 1-800-461-8898 for details.
Because you have your horse's supplements on AutoShip, you get free ground shipping all day, every day on just about everything we sell at SmartPak, thanks to your SmartPerks. The few add-on items we have can be shipped free by syncing them with your AutoShip order, shipping on a Barn Saver Shipping day, or by having a group of add-on items that total over $75.

Have a question?
Call 1-800-461-8898 or email anytime!

Vita Flex MSM

Vita-Flex Nutrition — Item #10127
Our Price: List Price:
Our Price: Our Price: Sale Price: : $ (%) :
Member Price:
(Members save 5% at SmartPak)
SmartPerks Price:
(Because you have supplements on AutoShip, you save an extra 10% on this and all other SmartPak tack & apparel items!)
Your Price:
(You save 5% as a member of . And, because you have supplements on AutoShip, you save an extra 10% on this and all other SmartPak tack & apparel items!)
SmartPerks Price:
(Because you have supplements on AutoShip, you can save an extra 10% on this and all other SmartPak tack & apparel items! Enter promo code PERKS at checkout.)
Your Price:
(You save 5% as a member of . Because you have supplements on AutoShip, you can save an extra 10% on this and all other SmartPak tack & apparel items! Enter promo code PERKS at checkout.)
SmartSuggestion Bucket (Learn why)
Free Shipping Thanks To
This item may be eligible for
Choose size & ship frequency

Oops! Looks like you've already added this item to your order.

Please select a different recipient name if you'd like to create a new order, or give us a call - we're happy to help!

AutoShip & Save
You'll love our AutoShip because it's:
  • Focused on healthy , because consistency is key
  • Easy to snooze or cancel online, anytime
  • Totally flexible - edit your order as often as you'd like
  • Your VIP pass to FREE SmartPerks benefits
PLUS! You'll save 5% on every shipment if you order this product on AutoShip
The frequency you selected is not eligible for SmartPerks benefits that come with AutoShip supplement orders. In order to get benefits like free shipping and 10% off, set this product to ship at least every days. What are SmartPerks?


Active Ingredient per 1/3 oz.:
(Maintenance Dose = 1 scoop (1/3 oz) daily)
Ingredient Per Serving Per Pound
Methylsulfonylmethane (MSM) (99.8% pure) 9,430 mg


Instructions for Use:
Enclosed scoops holds 1/3 ounce.

Horses: Give one scoop twice daily for the first 7 days. Give one scoop thereafter for daily maintenance, or as directed by veterinarian.

Dogs and Cats: Give reccomended level twice daily for the first 7 days, reduce to once daily for maintenance. Give dry or dissolve in lukewarm water first. 1/4 teaspoon = 1 gram MSM.

 Up to 45 lbs body weight 1/4 rounded tsp

 45 to 90 lbs body weight 1/2 rounded tsp

 Above 90 lbs body weight 3/4 rounded tsp

Clinical Research

You Might Like
    Customers Also Shopped For
    "Advanced Cetyl M Pellets are uniquely designed to ...
    "Advanced Cetyl M Pellets are uniquely designed to help maintain and support joint health and function in horses. In addition, this formula may also help ease the discomfort that can occur from heavy exercise, training, and competition. The unique omega ...
    "Glycosaminoglycans are the principle components of cartilage, synovial ...
    "Glycosaminoglycans are the principle components of cartilage, synovial fluid, and vitreous humor (the liquid within the eye). Often referred to as “the Glue of Life,” GAGs help hold together connective tissues such as tendons and ligaments, and numerous clinical studies ...
    "CW is 2.11% pyrantel tartrate medicated pellets. The ...
    "CW is 2.11% pyrantel tartrate medicated pellets. The manufacturer recommends dosing a horse with a larvacidal dewormer such as ivermectin or moxidectin before beginning administration of a daily dewormer, to help destroy existing larvae and adult parasites. They also recommend ...
    "dac® Yucca 5-Way PAC is a trace mineral ...
    "dac® Yucca 5-Way PAC is a trace mineral supplement suitable for all classes of mature horses. Minerals play a critical role in numerous metabolic functions, including: reproduction, bone development, nerve function, immune function, and hoof, skin, and coat quality. The ...
    "Probiotic for horses with beneficial bacteria, yeast culture, ...
    "Probiotic for horses with beneficial bacteria, yeast culture, enzymes, and fructooligosaccharides (FOS) to help enhance the digestive tract and overall health. The unique combination of ingredients enhance nutrient absorption, encourage the growth of fiber-digesting bacteria, stabilize digestive tract pH, and ...
    "Sand Clear contains psyllium seed husk, a natural ...
    "Sand Clear contains psyllium seed husk, a natural soluble fiber that increases feed ration bulk. Sand Clear includes apple and molasses flavoring horses love. Psyllium contains more soluble fiber than oat bran and wheat bran combined. There is 80% soluble ...
    "SmartCanine Joint is specifically formulated to support normal ...
    "SmartCanine Joint is specifically formulated to support normal joint function in lightly to moderately active dogs. It provides the fundamental ingredients for supporting joint and cartilage health, including glucosamine, chondroitin sulfate, and MSM, as well as the herbs boswellia and ...


    out of 5
    92% of customers would recommend this product to a friend!
    Tell us what you think!

    The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

    • Review 0
    • Votes 0
    • Discipline:
    • Expertise:
    • Product
    • Competitor:


    Vita Flex MSM is rated 4.7 out of 5 by 99.
    Rated 5 out of 5 by from Vita Flex MSM This has definitely helped my horse with hind tendon issues. He had been three-legged lame until I started using MSM. Had to stable him until MSM took effect last winter. He's been out on pasture since.
    Date published: 2011-07-25
    Rated 5 out of 5 by from keeping my old jumper jumping! I ordered this as a preventative measure for my TB gelding. He is healthy and sound, but getting older. The few creaks he was getting have gone away since he's been on this and he has a bit more spring at the jumps. He eats it up easily. It seems to be doing a great job for him!
    Date published: 2011-07-10
    Rated 5 out of 5 by from Great Product! We have used this supplement on my daughter's 15 yr old TB for over a year. He is still going strong as an eventing partner for her. He loves to jump and this product keeps his joints in great working shape.
    Date published: 2011-06-05
    Rated 5 out of 5 by from Great Product! I have been using this for 4 months, and it makes my 18 yr old throughbred a different horse! His hocks and knees used to crack to the point where i was debating to stop riding him or not and now he moves like magic. The only thing is the recommended dose is a lttle small. I give 1.5 scoops ad it does wonders on him!
    Date published: 2011-05-25
    Rated 4 out of 5 by from Just starting buy already see a difference. We are so pleased with the progress we see in our horse. We are only two weeks into the use and he is already showing improvements.
    Date published: 2011-05-19
    Rated 5 out of 5 by from Excellent quality staple supplement All of my horses get MSM and this product is an excellent quality and value.
    Date published: 2011-04-25
    Rated 5 out of 5 by from
    Date published: 2011-03-22
    Rated 5 out of 5 by from Great Advice! It has reduced inflammation and seems to increase circulation. It has lessened lameness, arthritis, pain, OCD, chronic back problems, synovitis, puffy hocks in our gelding. Hooves look great and coats feel silky and shiny. We have only used the product for a short time, but already see improvements and for the cost, I will continue to feed it to our horses as preventative care.
    Date published: 2010-12-31
    Rated 5 out of 5 by from Great Product I use this product as a dietary supplement on my horses that have sore joints. It really works.
    Date published: 2010-12-22
    Rated 5 out of 5 by from Excellent Product This product is wonderful and priced right. I use it for both of my horses and I can see what a difference it has made for them. It is one of the lowest priced joint supplements and yet is very effective.
    Date published: 2010-12-16
    Rated 5 out of 5 by from Excellent product MSM is a staple supplement I give to my horses regardless of age. This product is an economical quality form of MSM.
    Date published: 2010-12-02
    Rated 5 out of 5 by from Great for our TB! We keep our 14 yr old Thoroughbred on MSM year round. He likes the taste of the Vita Flex!
    Date published: 2010-11-29
    Rated 5 out of 5 by from I'll let you know don't know yet, they haven't been on it long enough to tell. the horses like the taste so thats good, I will let you know how this product works out for us.
    Date published: 2010-09-11
    Rated 1 out of 5 by from It smells after a couple of weeks I stopped using it and wasted half a big container as the smell was so strong. Did not see any improvement either
    Date published: 2010-09-05
    Rated 5 out of 5 by from My vet recommended this My 20-year-old mare had ongoing joint problems after a significant injury. My vet recommended MSM for her chronic pain and this product as being just what I needed without a lot of things I did not.
    Date published: 2010-09-01
    Rated 5 out of 5 by from Love this! I have been using this on my new horse who is 18.2 HH, along with all my other horses. I have seen improvement in his coat, an overall change. There has been a huge difference in his hooves, though everything could be that he is finally getting feed the right amount, but I do have to say MSM is something I have used on all of my horses from Young to Old, and in every horse there has been a difference in the coat to the mane and tail to the hooves. Overall, a great product!
    Date published: 2010-08-09
    Rated 5 out of 5 by from Worked for Me I added MSM to my horse's supplement on the recommendation of my trainer for an odd mild lameness that was intermittent. After a month on MSM the lameness did not come back and he has been fine ever since. I will continue to give MSM for life.
    Date published: 2010-07-20
    Rated 5 out of 5 by from Great item! I've used this product for several years and Smart Pak has the best price and best shipping.
    Date published: 2010-07-12
    Rated 5 out of 5 by from best bang for the buck This really helps to keep your horse limbered up, move easy. We compete pretty hard on our horses, this helps to keep them ready to go.
    Date published: 2010-04-30
    Rated 5 out of 5 by from tried and true I have used this for years and always happy with the quality
    Date published: 2010-04-19
    Rated 5 out of 5 by from MSM so useful and so necessary Always an excellent product, have used it for years in equine, canine and human. Great stuff. Rarely use NSAIDs because of it. We have retired endurance, steeplechase and current event horses-all do extremely with it.
    Date published: 2010-03-02
    Rated 5 out of 5 by from Great product I have started all three of my horses on this recently, after having one of it for awhile. All three horses eat it with their grain, and one is pretty picky! All three horses seem to feel better with it. One horse noticeably! She does even better on this than BL solution or other products I have tried. The price is a huge plus as it is not an expensive product. I will definitely keep my horses on this! The other benefit is that it's safe for my IR mare also, as the current research shows there might be a problem using glucosamine and chondroitin in IR horses. Great stuff!
    Date published: 2010-03-01
    Rated 5 out of 5 by from A must have purchase I have used MSM for years on my horses. THe product helps with horses who are IR like mine. Especially when they are showing signs of Laminitis and soreness over entire body. Should be used by all class of horses for added antioxidants. Mix it in with speedi beet and a handful of wheat bran and watch them devour the feed. Great product.
    Date published: 2010-02-22
    Rated 4 out of 5 by from Promoting Connective Tissue Healing Hoping to help with healing of a small ligament tear. We are new to this product and hope to promote repairing to connective tissue that has been injured.
    Date published: 2010-02-15
    Rated 5 out of 5 by from Great Product! I've been using this product for years, and it has really helped my Thoroughbred mare. I was very pleased that I received it within a few days when I ordered it from Smartpak. Highly recommended!
    Date published: 2010-01-21
    Rated 5 out of 5 by from Just What It Says... Pure MSM. Great uniformity of the product. I got this as part of a joint care regimen for my German Shepherd. It's the perfect compliment to Missing Link Plus, so I know he's getting everything he needs without oversupplementing.
    Date published: 2009-12-29
    Rated 5 out of 5 by from Horses can't live w/out it My 25 yr old mare and 7 yr old gelding are on this product daily. The mare cannot get around w/out it. We can tell if we have accidently skipped a day. Makes a HUGE diff in her mobility. The gelding is on it because he works hard and it makes his movement more fluid as well. As inexpensive as it is you cannot afford to not give this to your animals.. All of my dogs are on it too. Makes their movement fluid and coats very shiny
    Date published: 2009-12-27
    Rated 5 out of 5 by from MSM Our 18 year-old lame horse is walking lithout a limp since using MSM for the last few years.
    Date published: 2009-12-17
    Rated 4 out of 5 by from Glad I've tried it My gelding is perfectly sound but has had residual swelling in an ankle from an old injury. After reading reviews, I decided to try MSM for its anti-inflammatory properties. He's only been on this supplement for a few weeks, but I do see a difference--the swelling has gone down a bit. I figured it can't hurt to try it based on reviews, research, and its reasonable price.
    Date published: 2009-12-16
    Rated 5 out of 5 by from So far so good Both of my rather picky "old men" (two retired A show hunters who get stiff and sore in winter) don't even notice it's in their feed. Seems to help with the winter soreness.
    Date published: 2009-12-15
    • y_2018, m_2, d_24, h_1
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.7
    • cp_3, bvpage2n
    • co_hasreviews, tv_18, tr_81
    • loc_en_US, sid_127, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_smartpak
    • bvseo_sdk, net_sdk,
    • CLOUD, getContent, 110ms

    Q & A

    Healthy Horses  ❤  Happy Riders