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SmartFlex® I Maintenance Pellets
SmartSupplements by SmartPak — Item #17183
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Maintains healthy joints

  • 4,000 mg of glucosamine, 5,000 mg of MSM & 1,250 mg of vitamin C support joint health
New & improved taste horses love! SmartFlex I Maintenance Pellets provide cost-effective joint maintenance for all horses in light work. This formula contains 4,000 mg of glucosamine, 5,000 mg of MSM, and 1,250 mg of vitamin C. SmartFlex I Maintenance Pellets provide the fundamentals of joint health for horses in light work, with a taste even picky horses can't resist.

SmartFlex I Maintenance Powder

View our Joint Supplement Comparison Chart

Find your horse's SmartFlex


Active Ingredients per 22 g:
(Maintenance Dose = 1 scoop (22g) daily)
  • Methylsulfonylmethane (MSM)
    5,000 mg
  • Glucosamine HCl (shellfish)
    4,000 mg
  • Ascorbic Acid (Vitamin C)
    1,250 mg
Inactive Ingredients: : Alfalfa Meal, Corn Distillers Dried Grains with Solubles, Lignin Sulfonate, Sodium Propionate, Vegetable Oil (cold pressed).


Instructions for Use:
Horse Weight Recommended Amount
Under 500 lbs. 0.5 scoops
500 – 1000 lbs. 1 scoop
1000 – 1500 lbs. 1 scoop
Over 1500 lbs. 1.5 scoops
Directions for Use: Administer 22 g daily, 1 scoop = 22 g


SmartFlex I Maintenance Pellets

Clinical Research

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    out of 5
    96% 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.

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    SmartFlex® I Maintenance Pellets is rated 4.7 out of 5 by 244.
    Rated 5 out of 5 by from Great product at a great price! My horse has been on SmartFlex 1 for nearly 6 months now, and I love it! He is only 6, but is off the track, so very prone to injuries or issues with his legs. On this product it just helps to give me some peace of mind that it keeps his joints feeling loose and supple and good. He has had a past injury on his legs, so I'm very careful to keep him from getting any more injuries or have that injury act up (especially since it is a sesamoid injury), but this gives him just enough so that he never comes out stiff or sore and his past injury never bothers him (almost like it never even happened).
    Date published: 2016-03-31
    Rated 5 out of 5 by from Impressed I bought this for my 12 year old gelding when I got him a year ago. He was very out of shape and cracked every time he walked. Riding wise he was very stiff and just wouldn't move out like he should. He's been on this for about a year and you would never guess his age or that it was the same horse. Very impressed with the outcome. No more swelling in knees and cracking when he walks.
    Date published: 2016-03-23
    Rated 5 out of 5 by from Flash Can Buck Our quarter horse paint was injured in the rodeo and was extremely tight. We have been giving him SmartFlex for two months now and he is able to run, buck and kick with the rest of the herd in this cold weather. He seems quite loose and comfortable.
    Date published: 2016-02-04
    Rated 5 out of 5 by from Great! Just started Sally, my mare on joint supplements and she loves it!
    Date published: 2016-01-19
    Rated 5 out of 5 by from Amazing Results I've been using this for a month for my 32yr old Arab. Just prior to putting her on this I had a few instances where I found her on the ground unable to get up. The vet thought part of the problem was arthritis. After being on the product a couple weeks I took her out to hand walk her and she acted like she was three years old. I was completely amazed. She definitely looks like she's feeling better overall. As far as palatability goes, she eats it all every day. She can be very picky in her old age. I had to switch her grain 3 times in the last year before I found one she'd eat long term.
    Date published: 2016-01-14
    Rated 5 out of 5 by from Great Supplement Wonderful supplement - keeps my horse flexible and happy!
    Date published: 2016-01-12
    Rated 5 out of 5 by from
    Date published: 2016-01-07
    Rated 5 out of 5 by from Stopped the "clicking" joints Been using for a couple months. My mare turns 14 this year and her joints started cracking when she's walking. After just a month, the cracking stopped! Very happy with this! :)
    Date published: 2016-01-02
    Rated 4 out of 5 by from Happy Gelding! Bought this for my 11 year old OTTB. He wasn't having lameness but I wanted a basic joint supplement since he's now considered middle aged. He has no problems eating it in his feed and is remaining nice and sound! As he increases in age I will eventually bump him up to the higher levels of glucosamine/HA/etc but he's doing great with this one!
    Date published: 2015-12-30
    Rated 5 out of 5 by from My mare canters again! I started my retired older mare on this product about 2 weeks ago. She had been very lame from arthritis in her knee. Although her knee still looks terrible, and she is not 100% sound, she is now happy to canter through the pasture. She had been hobbling. It is so good to see her feel so good.
    Date published: 2015-12-29
    Rated 4 out of 5 by from Easy to administer and my horse doesn't mind the taste.
    Date published: 2015-12-15
    Rated 4 out of 5 by from My mare suffers from arthritis in her right knee and she is moving around better and getting up and down better
    Date published: 2015-12-08
    Rated 5 out of 5 by from Best supplement choice! My horse has been on this amazing supplement for over two months now. He is an American quarter horse gelding and is 12 years old. I have noticed a lot less cracking in his joints and his lead changes are a lot more fluent !
    Date published: 2015-11-24
    Rated 5 out of 5 by from Awesome supplement I put my young horse on this supplement 2 months ago. He has one lead change where he is sometimes late behind. After a month on this supplement his swaps are clean and auto in both directions!
    Date published: 2015-11-11
    Rated 4 out of 5 by from Convenient My horse seems to move a little more fluidly since using smart flex.
    Date published: 2015-11-04
    Rated 5 out of 5 by from Helped my horse feel better Fed this to my horse with her pellets and she definitely had more spring in her step.
    Date published: 2015-11-03
    Rated 5 out of 5 by from Rescue OTTB I have noticed less cracking in my OTTB's joints! I am a proud purchaser of this product and continue to recommend it to others at the barn when they ask about stiff joints.
    Date published: 2015-11-02
    Rated 3 out of 5 by from Palletable, no results yet My horse has been on this supplement for just over a month, and while I have not noticed any difference yet, he is happy to gobble the pellets up with his food. I am giving it a full 2 months before deciding to keep/switch him.
    Date published: 2015-10-22
    Rated 5 out of 5 by from Lovely product! I've been using this product for a little over a month now. I can tell that my 13 year old gelding is really thriving on this supplement. Spirit is a long back high withered horse. So I was just looking a supplement to help prevent any issues that may come along as he ages. Before the supplement his left hip would be stiff during our warm ups, and would make asking for the left lead near impossible. With being on the supplement he is much happier to give me the left lead when I ask for it. He eats the pellets right up, and never leaves any behind! We will defintly be staying with this supplement, and come show season will progress to the next level.
    Date published: 2015-10-19
    Rated 5 out of 5 by from Very Good Product My yearling colt injured his rear hock and after the vet came out I started him on SmartFlex Rehab. I used that from r over six months and felt it helped heal his injury from the inside out. Swelling went away and he had absolutely no stiffness. I wanted to make sure he was going to get back to his playful self! He came along perfectly. I used SmartFlex Maintance for three months after SF Rehab. Grantham is back to 100%- and we can't wait to start him next year!He loves the supplements- I think he just likes to eat in general! You will not be disappointed with any of these products. Customer Service is AMAZING!I could sleep at night knowing all of the bases were covered.
    Date published: 2015-09-30
    Rated 5 out of 5 by from great maintenance I have this for several of our horses...5 of them are lesson horses, so maintaining is the key
    Date published: 2015-08-13
    Rated 5 out of 5 by from Great all around joint supplement I needed a supplement joint supplement for a retired rescue horse that I was going to be boarding out. I wanted to make sure I chose Smart Pak to ensure she was receiving the correct amount. Smart Pak offers great choices and I settled on the Smart Flex Maintenance. She is retired so I liked the amount of Glucosamine and other anti inflammatory additives. The price was perfect and she has done very well on it. The barn owners says she leaves nothing behind and it shows especially at the age of 26 and she's running around the pasture. I would feed this to horses not much in use and no major underlining joint issues - perfect amount of supplementation!
    Date published: 2015-07-08
    Rated 5 out of 5 by from seamless transition I downgraded joint support from level III to level I as we transitioned from eventing training 6 days a week to light riding 3 days a week. It was a seamless change with Smart Pak. I didn't have to guess when a bucket would empty or research another brand.
    Date published: 2015-06-30
    Rated 5 out of 5 by from
    Date published: 2015-06-16
    Rated 4 out of 5 by from
    Date published: 2015-05-27
    Rated 4 out of 5 by from My horse eats it all! This joint supplement is a reasonable price for a pelleted product that my horse is willing to eat. Too often I've seen powdered supplements stuck to the side of the bucket, this supplement actually makes it into the horse.
    Date published: 2015-05-26
    Rated 5 out of 5 by from No more clicking! My app mare has been on this for 1.5 months now and her back leg clicking is gone. She's about 9 and is not arthritic so the click wasn't anything major, but I'm glad it's taken care of.She's not a super picky water but loves the taste of this one nonetheless. My only complaint is that it smells awful but she eats it so it must smell good to her.
    Date published: 2015-05-22
    Rated 5 out of 5 by from I started my horse on this in April and she like the taste we finally got some nice weather to ride and I don't hear the click I use to when she walks. My horse is 17.
    Date published: 2015-05-12
    Rated 5 out of 5 by from Horse is happy He is 21 and acts like he is 7. It may or may not be related to this product, who knows. He's just a happy fellow.
    Date published: 2015-04-29
    Rated 5 out of 5 by from Smartflex Glad I put my mare on this product! Peace of mind for me and it must taste really good to her!!!
    Date published: 2015-04-29
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