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SmartFlex® III Resilience Powder
SmartSupplements by SmartPak — Item #14662
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Best-selling joint formula

  • 10,000 mg glucosamine, 1,000 mg chondroitin sulfate, 100 mg HA & 10,000 mg MSM for healthy joints
  • 500 mg silica and 1,000 mg collagen for resilient tendons & ligaments
SmartFlex III Resilience (formerly SmartFlex Repair) is a comprehensive joint, tendon, and ligament formula designed for horses in strenuous work.

This formula is perfectly designed to help hardworking horses “bounce back” from strenuous workouts.
For joint support, SmartFlex III Resilience provides 10,000 mg of glucosamine, 1,000 mg of chondroitin sulfate, 100 mg of hyaluronic acid, 10,000 mg of MSM, and 5,000 mg of vitamin C. For helping maintain healthy, resilient tendons and ligaments, this formula also provides 500 mg of bioavailable silica, 1,000 mg of hydrolyzed collagen, and 400 mg of grape seed extract.

An excellent choice to help keep competitive horses at the top of their game.


View our Joint Supplement Comparison Chart

View our Tendon & Ligament Supplement Comparison Chart

Find your horse's SmartFlex


Active Ingredients per 32 g:
(Maintenance Dose = 1 scoop (32 grams) daily)
  • Glucosamine HCl (shellfish)
    10,000 mg
  • Methylsulfonylmethane (MSM)
    10,000 mg
  • Ascorbic Acid (Vitamin C)
    5,000 mg
  • Chondroitin Sulfate (bovine)
    1,000 mg
  • Hydrolyzed Collagen
    1,000 mg
  • Silica (Orthosilic Acid and Magnesium Silicate)
    500 mg
  • Grape Seed Extract
    400 mg
  • Sodium Hyaluronate
    100 mg
Inactive Ingredients: : Apple Flavoring, Dulsatin® (natural sweetener).


Instructions for Use:
Horse Weight Recommended Amount
Under 500 lbs. 05. scoops
500 – 1000 lbs. 1 scoop
1000 – 1500 lbs. 1 scoop
Over 1500 lbs. 1.5 scoops
Directions for Use: Administer 32 g daily, 1 scoop = 32 g.

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    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.

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    SmartFlex® III Resilience Powder is rated 4.6 out of 5 by 222.
    Rated 5 out of 5 by from Great for Joint Health I adopted an Off the Track Thoroughbred less than a year ago. He sustained injuries on the track (some of which he raced on), including pins in one ankle & chips in the opposite knee, before being retired. My trainer jokes that he's a 6 year old youngster with an 80 year old body. All joking aside, my big bully needed a good joint supplement that would ease his arthritis & joint inflammation. When the weather turned chilly here in SoCal this winter, he was totally lame (couldn't ride him for over a month). I was about to retire him to pasture indefinitely. I've tried a few different supplements, since adopting him & nothing seemed to improve him much. Then I discovered that SmartFlex III Resilience has more Glucosamine, MSM & HA in it than almost all the other available supplements. My boy has been on it for over a month now & showed marked improvement within the first week!! He's doing flat arena work & light trail 3-4 days a week & shows no lameness, stiffness, or swelling in his joints before, during, or after his training sessions. He's much happier & relaxed as a result & so am I! My horse's trainer & vet were both impressed with the results. Couldn't have asked for a better product! Bully & I both thank you Smartpak!
    Date published: 2012-02-17
    Rated 5 out of 5 by from Awesome products Has kept my 20 year old TB gelding sound enough to still jump courses and compete!! Smart Muscle mass has given him back a top line in two months that he hasn't had in years!!
    Date published: 2012-01-23
    Rated 5 out of 5 by from
    Date published: 2012-01-20
    Rated 4 out of 5 by from Great Product! My 9 yr old APHA gelding, Deuce, pulled his DDF tendon and suspensory ligament. I hadn't seen more than a minor reduction in swelling in the two months of wrapping and stall rest prior to starting him on SmartFlex Resilience. Within a week the swelling went down completely and Deuce's hesitancy in movement all but disappeared. After one 28-day supply, he's ready for light riding again, which the vet estimated shouldn't have been possible for at least two more months. I have been so pleased with this product! I've now ordered more to help see Deuce through the rest of his recovery, and will continue to be a SmartPak customer. The customer service and website usability is also superb. Thank you so much SmartPak!
    Date published: 2012-01-04
    Rated 5 out of 5 by from Worth it! What a HUGE difference! My horse suffered two kick injuries to his cannon bone that resulted in bone chips and had a possible fetlock sprain all to the same leg all within a short amount of time. Months later, he still had excess fluid/windpuffs in his fetlock that the vet told me he would likely always have due to all the trauma to that leg. I decided to put him on Smart Pack Resilience and after only two months on it, he NO longer has ANY windpuffs/excess fluid in his leg. He is doing awesome now--doing dressage and jumping!! What a noticeable difference! I'm never taking him off of it!
    Date published: 2012-01-04
    Rated 4 out of 5 by from Quick results! Bought this supplement for an OTTB that came off racing pretty joint-sore. Have been feeding for about a month and he's becoming very sound and able to continue his re-schooling. Product is performing as promised!
    Date published: 2011-12-27
    Rated 5 out of 5 by from Another Outstanding Product by SmartPak! I am literally in love with SmartPak III Resilience! I have a 5 year old gelding that I do heavy-duty work with, and it definitely helps knowing that this helps to keep his joints in good shape!
    Date published: 2011-12-24
    Rated 5 out of 5 by from help for injured horses I have a horse that was injured in his previous career as a jumper and he always had problem with his bad knee. I tried this product and he is doing great and seems to be pain free. I used it on another horse and had good results again.
    Date published: 2011-12-03
    Rated 5 out of 5 by from Awesome Love the product so far! but it took my horse a couple days to get use to the taste.
    Date published: 2011-11-29
    Rated 4 out of 5 by from smart pack we are pleased with the delivery, internet communications and products we receive through Smart Pak. Would it be less costly to do bulk - possibly but this way I know he is getting the supplement that is for him in the amount that I and my trainer decided would be best.
    Date published: 2011-11-03
    Rated 5 out of 5 by from great product My 11 yo OTTB moves much more fluidly since he's been on this supplement. He's a bit of a picky eater and he gobbles this up without a problem.
    Date published: 2011-11-02
    Rated 5 out of 5 by from Excellent Product We use this product to keep our cutting horse's joints and ligaments in the best shape possible. He is a coming 12 yr old, therefore, the rigorous workouts necessary to keep him in shape for cutting can stress his body. He is in the best shape of his life thanks to Smart Flex III Resilience!
    Date published: 2011-11-02
    Rated 5 out of 5 by from Totally worth it Smart Flex repair is great stuff, especailly for the hard working horse, such as an event horse or jumper or an upper level dressage horse that works hard. I noticed a considerable difference in my horses wind puffs, they went down to almost to the point where you cant see them. Although this product does take at least a month to see a noticable difference .. highly recommend :O)
    Date published: 2011-10-19
    Rated 5 out of 5 by from Really helping my mare! Before starting her on smartflex III, my mare Bobbie was always stiff and short strided. After having her on smartflex for two months, she still felt a little sore. I had hind shoes put on her, and now she's moving beautifully! Her gaits have become smoother, and she's much more comfortable. I will never take Bobbie off of smatrflex III.
    Date published: 2011-10-18
    Rated 5 out of 5 by from Great Product I have been using this for years. I have compared it to MANY other products and it is a far superior product. My horse is 12 has been competing in the jumper for years and has needed no maintenece besides this product. It is keeping his joints very healthy.
    Date published: 2011-10-15
    Rated 5 out of 5 by from Won't Use Anything Else I've had my 12 year QH mare, Raven, on this product for over 3 years and has done wonders for her soundness. She doesn't have the best conformation in her hind legs and her hocks began to make her miserable. It was becoming regular for her to have cortisone injections every 6 months to keep her comfortable enough to ride, and she loves nothing more than to work. I decided to give this a try and won't put her on anything else. Raven is sound and happy, back to her dressage/jumping work with enthusiasm. I haven't had her hocks injected in 2 years, and I am grateful that she no longer requires invasive treatment. It's a great product that's given me back my amazing riding partner.
    Date published: 2011-10-13
    Rated 4 out of 5 by from
    Date published: 2011-09-18
    Rated 5 out of 5 by from Great Product Both my horses love this product. Most of the time, they will leave quite a bit of a powdered supplement at the bottom of the bucket...not this one. Smartpaks makes it easy for both myself and my barn owner.
    Date published: 2011-09-12
    Rated 4 out of 5 by from
    Date published: 2011-09-09
    Rated 4 out of 5 by from Amazing yet expensive! I bought this for my 18 year old barrel horse who has carpal fusion in right knee along with with a recent diagnosis of navicular (for which I feeding SmartSox). He was a previously running 3D times, and we went to a barrel race 3 weeks after starting it, and he was feeling so good that he ran in the 2D. I was very pleased with this product, but I wish it was more reasonable priced.
    Date published: 2011-09-08
    Rated 4 out of 5 by from Quality Product I haven't been using it long enough yet, but the quality compared to other previous products I have used is better, and my picky eater has no problem with the taste. That is a first for her.
    Date published: 2011-09-08
    Rated 4 out of 5 by from Great Product for a Great Price I used to to feed my horse a much more expensive, name brand product that had less of the ingredients than SmartFlex Repair. After comparing the products I found that SmartFlex Repair was not only a better value, but a much better supplement.
    Date published: 2011-08-29
    Rated 4 out of 5 by from Great product! My favorite thing about this supplement is the idea that this one supplement combines the best of both SmartFlex III Ultra and SmartTendon for a great price! My 2 year old had sticky stifles so I tried this instead of her regular SmartFlex I and it seemed to help. She no longer has sticky stifles after just a few months on this product! I can't say for sure it was all this supplement or a combination of other factors as she was growing quite quickly at the time, so I will give it 4 stars instead of 5. I am now putting her back on SmartFlex I now that she is no longer having issues, but I wouldn't hesitate to put her on this right away if she ever gets sticky again!
    Date published: 2011-08-11
    Rated 5 out of 5 by from
    Date published: 2011-08-10
    Rated 5 out of 5 by from Very pleased! I have a off the track TB and when I got him he was dealing with some issues with his stifle. He had been turned out to pasture for a year or so since his current owner had left for college. He had also had a little fall in some crossties prior to me owning him. When I started him back to work, he was stiff and having an issue with a rear leg. I immediately started him on a joint supplement and was not getting the results I wanted, so I went with Smartflex Repair and have been more than happy. With the help of a great vet and Smartflex Repair my boy is happy and comfortable and loves his job of teaching ME dressage! :-)
    Date published: 2011-08-10
    Rated 4 out of 5 by from Great Product Hello, I purchased this product for a Sr. horse that had some tendon issues (stocking up when rode hard in training also) He also had a hitch, in his left back leg, when moving. The hitch is gone, and his tendons around his ankles have not swelled. This Sr. is running smooth now...good product!
    Date published: 2011-08-09
    Rated 5 out of 5 by from Best Purchase Ever My 17 year old retired cutting horse has had numerous soft tissue injuries in both front legs. SmartFlex Repair has been an amazing help in keeping her sound for her second career as a great ranch horse. It has done such a great job that twice I have thought I could take her off the supplement as she seemed to no longer need it. Wrong..... .both times that I have taken her off of it, she has had another soft tissue injury. I guess I can be a little hard headed, as I had to try stopping it twice..... It will be her supplement for life as it keeps my partner sound and going strong!! P.S. YOU are the best company ever, you have the most amazing customer service that I have ever had the pleasure of doing business with!!
    Date published: 2011-08-09
    Rated 5 out of 5 by from Miracle Product!!!! My beloved mare was kicked in the hock by another horse two years ago, when i found her on the ground in the paddock she was in shock and her entire hock bone was exposed and her super fiscal digital flexor tendon was split into 3 pieces. She spent weeks at the equine medical center in Ocala FL and i was told she probelly wouldn't make it but she finally pulled through and after a year of recovery and every supplement known to man she still was lame and had developed arthrtis in her other rear leg from supporting the injured one and then if that wasn't bad enough... she suffered from a locked stiffle!!! I was ready to give up and then I TRYED THIS PRODUCT!!! SHE IS TURNING INTO A NEW HORSE!!!!!I have been useing Smart Flex Repair for 2 months and every day she gets better and better!!!!Smart Pak YOU ROCK!!!! I was told by vets to put her down ,that she wouldn't even be pasture sound. Now i believe I will be riding her again within 6 months! THANK YOU! THANK YOU! THANK YOU!!!!!
    Date published: 2011-08-04
    Rated 4 out of 5 by from This product helps In a rehab situation, this product has contributed to a steady improvement towards a return to competitionfor my injured horse
    Date published: 2011-08-01
    Rated 4 out of 5 by from Nice supplement worth the $$ I've tried a lot of supplements. This seemed to have "more" in it for "less" money than some. My horse wasn't sure about it the first couple days but now he cleans it all up. I noticed a difference in him within a couple of weeks. Great product! Very Impressed!
    Date published: 2011-08-01
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