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SmartFlex® Ultimate Pellets

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Product Overview

Which horses benefit from comprehensive joint and soft tissue support?

Your horse’s body has the ability to repair and rebuild after normal “wear and tear” from light activity, but the increasing demands of riding could cause more damage than it can keep up with. Joint supplements in this category are designed for horses in intense work and provide the ingredients needed to help maintain joints and connective tissue health. Tendon and ligament ingredients as well as a comprehensive selection of antioxidants are included to help equine athletes continue to thrive. This level of support is also worth considering for horses that may need additional support due to age or joint issues.

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Key Ingredients


Supplement Facts

Ingredient Name Amount Per Serving
Ingredient Name Amount Per Pound

Ingredient Details


Weight Recommended Amount Loading Amount

How the Ingredients Work


Supporting Success

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  • Choose Your Flex: SmartFlex® Ultimate
    Not sure which SmartFlex® formula is the best one for you? Watch this short video & see if SmartFlex Ultimate is right for you and your horse.
  • Simplify with SmartPaks | Consistent, Custom, Convenient
    Simplify your life with SmartPaks: custom-made, pre-measured daily doses of your horse's supplements.


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.

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

SmartFlex® Ultimate Pellets is rated 4.6 out of 5 by 102.
Rated 5 out of 5 by from GREAT product! I started my 18.2H purebred Friesian gelding on this product August 2019. He LOVES the pellets!! I do notice that he moves freer & seems to perform better also. He also has anhydrosis--non sweating. In Florida, that is very dangerous. I had him on 2 supplements to help him sweat & a beer a day which all together barely got him sweating even when in the 90's. One week after I started these Ultimate Pellets, he started sweating like crazy!! I am not sure what is in this product to make him sweat, but I am so happy for him! He sweats great in the heat of the summer & the cooler temps of the Florida Fall. So we are taking care of his joints & tendons & also his thermostat. He works so much better now!!
Date published: 2020-02-05
Rated 1 out of 5 by from GLUCOSAMINE HCL IS WORSE THAN A PLACEBO! I was SO excited about this product! My OTTB ate it, and I loved the idea that I was supporting him as an eventer - UNTIL I did plenty of research, and asked a nutritionist (she has her PhD in clinical nutrition) friend of mine - Glucosamine SULFATE is the ONLY Glucosamine that should be recommended and used! Glucosamine HCL does NOTHING! Studies show that placebos have better results than Glucosamine HCL!! SAVE. YOUR. MONEY.
Date published: 2019-05-14
Rated 5 out of 5 by from The Best Oral Joint Supplement Available My farrier recommended this product. My Clyde/TB cross is 14 now and needs a little help with minor arthritis and muscle stiffness. I had him on Cosequin ASU for the past year. Now that he's been on the Smartflex pellets for 6 weeks I'm really seeing a difference in him. I'm so impressed with this product I'm putting my other gelding on it too!
Date published: 2018-07-10
Rated 5 out of 5 by from It works! I have tried everything on my retired show mare, and after two months on SmartFlex Ultimate, her flexibility is improving!
Date published: 2018-06-14
Rated 5 out of 5 by from It Works! I bought this product a month ago, cause I wanted to try a stronger dose of the joint supplements. Smartflex Ultimate has helped my Lilly from the point of barely able to walk to trotting and cantering around and being her spunky normal self! This product is worth every buck!
Date published: 2018-05-01
Rated 5 out of 5 by from Good ingredients at a fair price I am happy with the combination of ingredients for the price. I didn't notice a change when I switched to it, which is a good thing as he was doing well on Smart Flex Senior.
Date published: 2018-01-12
Rated 5 out of 5 by from Great results! The difference in Shortys joints were noticeable within a few days. He was moving much more freely and smoother.
Date published: 2018-01-03
Rated 5 out of 5 by from Smart Pak Ultimate is the best! Smart Pak Ultimate ligament supplement is just what my horse needs!
Date published: 2017-12-11
Rated 5 out of 5 by from Great Value Ive had my horse on SmartFlex for a while, now with the Ultimate Pellets, I can be sure he is getting what he needs in his elder years and throughout his rehab. Great value and its a GREAT Product for the sensitive ones. Allergy issues always seem to get to us because of hidden ingredients....Not with this product. You get what is on the label and that is very important to horse owners that have special needs horses.
Date published: 2017-09-05
Rated 5 out of 5 by from Works The ingredients in this product have helped my horses hocks better than anything else
Date published: 2017-09-01
Rated 5 out of 5 by from Great product I bought this product over a month ago for my mare for just an extra comfort supplement. She's a spotted draft and she's short and stout. She eats the supplement with no problem!
Date published: 2017-08-21
Rated 5 out of 5 by from Great results I started using this a couple of months ago for both of my horses - 23 yrs and 15 yrs. My farrier has noticed a huge difference in their flexibility and I have noticed a huge difference in their movement.
Date published: 2017-08-05
Rated 5 out of 5 by from It really works I have been using this for about 10 months and I can definitely tell this has helped my show horse. My AQHA gelding and I show the all round which leads to long days and a lot of hours riding. Around this time last year I could tell my horse was hurting I tried giving him time off and that helped but it didn't get him back. I knew a lot of people that swore by Smartpaks so I gave them a shot and within 2 months my show partner was back. Even with the long days and long lessons he has stayed comfortable. I will never have my horse on anything else. Best part is he loves the taste he actually thinks his Smartpaks are treats.
Date published: 2017-06-15
Rated 5 out of 5 by from Worth every penny My horse has been on this product for over a month. I have seen a big difference in his comfort level. He has arthritis in his hocks and this joint supplement has helped him to move better. It's very much worth the price
Date published: 2017-05-17
Rated 5 out of 5 by from Worth the Price Both of my boys are in their late teens, and are starting to get a little creaky, especially my Thoroughbred (he had kind of a rough life before we got him). Both of them are doing really well on this. Their recovery after their workouts is much quicker, and I don't hear any creaking anymore when I pick their feet. I've never seen a joint supplement make that much of a difference that quickly. They will be staying on it long term. It's definitely worth the price. SmartPak makes excellent supplements.
Date published: 2017-05-09
Rated 4 out of 5 by from Nice but expensive I've had my older horse on this supplement in the past and just recently had my younger one on it for a couple months. I think its a good supplement that they both will eat with quality ingredients, but I just don't notice enough of an improvement over the Resilience formula to justify the cost. It certainly does it's job, but I'll just stick with the Resilience formula for my horses from now on.
Date published: 2016-12-29
Rated 5 out of 5 by from Fantastic! After one month I noticed a huge difference in my apps movement. He had an old injury to his suspensory tendon that didn't heal as intended, but what a difference; he moves so nicely and it's rare to hear his hocks pop and crack anymore. I couldn't be happier!
Date published: 2016-12-23
Rated 5 out of 5 by from great breeches My horse has been on SP digestive supplement for awhile and is doing great with the product. So, when decided to add a joint supplement I felt confident this would just as good! Great to have everything in one package and at a discounted price plus addition of hoof and coat!
Date published: 2016-08-17
Rated 5 out of 5 by from Good prevention Upgraded from Smart Resilience 3 to prevent issues during a conditioning and training program. My horse is injury free.
Date published: 2016-08-06
Rated 5 out of 5 by from Wonderful Truman is moving better than ever after being on for two months
Date published: 2016-06-23
Rated 2 out of 5 by from horse would not eat it I tried several ways to hide this in her feed, to no avail. She just would not eat it. Thankfully, Smartpak gave me a refund.
Date published: 2016-06-06
Rated 5 out of 5 by from Great product My horse is a picky eater, but eats this with no hesitation. Seems to work better & not as anxious.
Date published: 2016-05-13
Rated 4 out of 5 by from Trial Run I am really happy with the trial period SP runs for supplements but I believe it would've taken longer than 2 months to see any results and unfortunately I couldn't stomach the price with all of the corrective shoeing and vet visits I've had to pay for. I can't really say that it helped much.
Date published: 2016-05-03
Rated 5 out of 5 by from Great Joint Supplement for the Competitive horse This is an easy to give all encompassing supplement. I used to give each of these separately. With a horse on the road showing, this is a constant in his regimen.
Date published: 2016-05-02
Rated 4 out of 5 by from Everything joint plus Resveratrol Bought a OTTB 14 year old mare end Aug 2015 and started Smartpak IV as a preventativeJan 2016 highly recommended by my coach. It has everything including HA Resveratrol and Omega 3 as work over fences and suspension has become more demanding. She's required treatments or imprint injections and is pain free and blooming. It is expensive but if you breakdown the ingredients I'm looking for by any reputable source its on point
Date published: 2016-03-26
Rated 5 out of 5 by from Great results I bought this on the recommendation of my vet. This has helped my 15 year old gelding continue to be competitive in the dressage ring.
Date published: 2016-03-23
Rated 5 out of 5 by from Love Smartpak I trust Smartpak to provide the highest quality products and they also have terrific customer service.
Date published: 2016-03-17
Rated 5 out of 5 by from This stuff works miracles! I've been using this in my 17 year old paint for two months. He has been shown hard all his life and has had hock and stifle lameness for a year and a half. I was ready to retire him but I thought I'd give this a shot. i just got off of him after a two month rest and he had NO SIGNS OF LAMENESS OR STIFFNESS. I had him on every mixture of supplements you can imagine for probably seven years and this WORKED. You won't regret trying it!
Date published: 2016-03-09
Rated 5 out of 5 by from Really great product for horses with special needs We use this on a horse that has off and on soundness issues and is chronically cold backed. It has helped him move freer and warm up more quickly. This is also very palatable so we know he is eating all of it!
Date published: 2016-02-08
Rated 3 out of 5 by from Smart Flex IV Ultimate Pellets After a month there was no noticeable improvement. For the the price and claims about this product, I expected my farrier to tell me that the gelding was not as stiff as he had been. The farrier advised that he might have seemed slightly better, but the improvement was so minimal, he was still difficult. She provided me with the name of a product she uses and I will probably order that and stop the auto deliveries.
Date published: 2016-02-02
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