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SmartFlex® Senior Pellets
SmartSupplements by SmartPak — Item #17472
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Best-selling senior formula

  • 7,000 mg of glucosamine, 500 mg of chondroitin sulfate & 50 mg of HA for healthy joints
  • 1,750 mg of devil's claw, 500 mg of boswellia & 300 mg of phenylalanine help manage discomfort
New & improved taste horses love! SmartFlex Senior Pellets were designed to support older horses in the three areas they need it most – joint health, digestive function, and antioxidants for a healthy immune system. For joint support, SmartFlex Senior Pellets provide 7,000 mg of glucosamine, 500 mg of chondroitin sulfate, 50 mg of hyaluronic acid, and 12,000 mg of MSM. This formula contains the herbs devil’s claw and boswellia, as well as the amino acid phenylalanine, to help manage discomfort. To support healthy digestion, SmartFlex Senior Pellets provide probiotics, prebiotics, and enzymes. And because senior horses benefit from extra antioxidants, this formula also contains vitamin C and super oxide dismutase. This outstanding formula is a customer favorite, and your horse will love the tasty pellets!  For even more comprehensive senior support, consider our multi-purpose formula SmartCombo Senior.

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Find your horse's SmartFlex


Active Ingredients per 60 g:
(Maintenance Dose = 1 scoop (60g) daily)
  • Methylsulfonylmethane (MSM)
    12,000 mg
  • Glucosamine HCl (shellfish)
    7,000 mg
  • Devil’s Claw Extract
    1,750 mg
  • Chondroitin Sulfate (bovine)
    500 mg
  • Boswellia Extract
    500 mg
  • DL-Phenylalanine
    300 mg
  • Calcium Ascorbate (Vitamin C)
    275 mg
  • Fructooligosaccharides
    225 mg
  • Super Oxide Dismutase (bovine)
    100 mg
  • Sodium Hyaluronate
    50 mg
  • Pancreatin 8x (supplying Amylase, Protease, Lipase)
    30 mg
  • Profloratin® (a proprietary blend of L. acidophilus, L. casei, E. faecium and B. longum)
    4.7 billion CFU
Inactive Ingredients:: Alfalfa Meal, Corn Distillers Dried Grains with Solubles, Lignin Sulfonate, Magnesium Silicate, Maltodextrin, Sodium Propionate, Vegetable Oil (cold pressed), Vitamin E.


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 60 g daily, 1 scoop = 60 g


SmartFlex Senior Pellets

Clinical Research

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    out of 5
    94% of customers would recommend this product to a friend!
    Tell us what you think!

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    SmartFlex® Senior Pellets is rated 4.7 out of 5 by 1378.
    Rated 5 out of 5 by from Great as far as I can tell! My horse seems to enjoy this supplement. Never a pellet left behind!
    Date published: 2016-12-20
    Rated 5 out of 5 by from Could not be happier! Since purchasing Senior Pellets, within four weeks my 28 yr old Quarter Horse marestarted have more energy and is walking around the pasture all day instead of laying down and sleeping for hours on end. I can't say enough good about this product,
    Date published: 2016-12-13
    Rated 5 out of 5 by from Great for my aging horse Since he started taking this he is showing his old self with more energy
    Date published: 2016-12-09
    Rated 5 out of 5 by from Very palatable and so convenient. My horse has been on a custom dose of this for the past 2 months. He seems to be moving better and I will keep him on this supplement.
    Date published: 2016-12-07
    Rated 5 out of 5 by from A life changer for my horse First I have to If you have ever met Vegas or seen him jump you see a great athlete with a lot of screws loose. He has always been one of my harder rides. He was diagnosed with kissing spine several years back which led to chiro, message, new tack etc. But I have never been able to get him to go more than one or two rides without one of his favorite temper tantrums. A month ago I started him on SmartPaks Smartflex Senior and Smart Pak Muscle Mass. He has been just in lunging work and yesterday was his first real ride since I started him on it. He is a new horse, and I'm not exaggerating. He is calm, never offered to hollow, and he actually floats with his movement. If he isn't a testament to what a high quality supplement can do. My husband and I have always been rather sceptical about supplements. But the results in his muscles, joints and mind cannot be denied; it's night and day. I had to share, when a product knocks my socks off and solves something vets have been struggling with for years. He can have this supplement for the rest of his life and maybe even go back to his favorite show ring.
    Date published: 2016-12-04
    Rated 4 out of 5 by from seems to help I bought this for my older horse who crackles and pops when she starts moving out of her stall in the morning. She seems to have less snap crackle and pop from those old leg joints
    Date published: 2016-12-03
    Rated 5 out of 5 by from Really helps my gelding! I've been using this joint supplement for about 6 months and can really see a difference in my 7 year old OTSTB gelding. I chose the SmartFlex Senior because my gelding had 112 starts on the track so although he's only 7 1/2, his joints are like a much older horse. This has really helped him in the way he moves. He tracks up better and is really freeing up his back nod shoulders! Love this supplement!
    Date published: 2016-12-02
    Rated 5 out of 5 by from pain relief
    Date published: 2016-11-29
    Rated 5 out of 5 by from Love this supplement My horse has been on smartflex senior for about 2 years now and I can tell the diffrence in him. He is not so stiff and stuck when I ride and he is very happy.
    Date published: 2016-11-24
    Rated 5 out of 5 by from Sore joints find peace! This joint supplement is keeping my horse sound and comfortable.
    Date published: 2016-11-22
    Rated 5 out of 5 by from Smartpak Senior My 22 year-old mare is doing excellent on this supplement. It has reduced the stiffness in her joints and I can tell that she feels great!
    Date published: 2016-11-15
    Rated 5 out of 5 by from Seems to agree well with our mares
    Date published: 2016-11-14
    Rated 5 out of 5 by from Great product Easy to use, horses like taste & we have seen good results
    Date published: 2016-11-08
    Rated 5 out of 5 by from Very palatable and I can see results! I bought his a few months ago for my very active/in shape 22 year old horse. He is a very picky eater & I have a hard time getting him to eat supplements. He ate this right up no problem! He mostly is in his stall with small run for the winter. I've noticed this supplement helps him be not so stiff.
    Date published: 2016-11-08
    Rated 4 out of 5 by from It works! This stuff works both as a curative and a supplement. My 16-year-old mare put her hoof through a wire fence and had cuts, bruises and pulled muscles. I bought the SmartFlex to help her heal. She was on it for a week and I noticed improvement. She has healed completely and I now give a maintenance dose. She moves like an eight-year-old, is comfortable and happy.
    Date published: 2016-10-29
    Rated 4 out of 5 by from Turn back clock with senior pellets! Vet suggested senior supplement that would ease joint discomfort. Smart flex Senior is a great way to provide the needed nutrients without breaking the bank.
    Date published: 2016-10-28
    Rated 5 out of 5 by from Works good I bought this a month ago and see an improvement in my older horse's comfort.
    Date published: 2016-10-24
    Rated 5 out of 5 by from my palomino is 30 and still going strong! My horse has been receiving this supplement for several years. He remains strong and canters around the paddock like a youngster.
    Date published: 2016-10-18
    Rated 5 out of 5 by from Makes my senior mare feel young again! Switched my 26 year old mare from glucosamine injects to the smartflex senior pellets. Wasn't seeing much difference from the glucosamine so that's why I wanted to try something new. My mate has never really acted her age, just a little stiffness coming out to work and in the mornings, but I am really impressed with these pellets. She's the rowdy one in her turnout group now! Her gimp/stiffness starting out is practically gone. Very happy I switched:)
    Date published: 2016-10-14
    Rated 5 out of 5 by from Happy Horse I purchased this about a month ago and my 18 year old mare is so happy. She is a lesson horse and had been showing the signs of some joint discomfort but is back to her happy healthy self.
    Date published: 2016-10-14
    Rated 5 out of 5 by from Mare with ringbone I have an 18 yr old mare with ringbone. Special shoeing helped some, but the horse was still in pain, some days more than others. After much research on various supplements to help with pain, I decided to try SmartFlex Senior Pellets and extra MSM. She now walks without limping and is much more comfortable. I love the individual packaging, as it is so easy to use and stays fresh. She eats the pellets without waste, too. I was teetering on whether or not to put her down, as I don't want her to live in constant pain, but the supplements have helped so much, that I don't have to make that decision at this point.
    Date published: 2016-10-11
    Rated 5 out of 5 by from Great results! My horse was originally on the herb-free pellets. I switched her because showing isn't really in our future. At 24, she moves like she is years younger. I'll never get tired of hearing someone exclaim, "She's HOW OLD?" after seeing her under saddle.
    Date published: 2016-10-11
    Rated 5 out of 5 by from A Senior Must!! I have a 40 year old Quarter Horse that is a real part of our family. I decided to give it a try to help the old girl get around a little better. Certainly glad I tried it. She loves it (unlike others that I have tried). Although at that age she is still slow moving, I can see a bit of "pep in her step". Anything for our old girl :) Yes, it does cost a little more, but just the fact that there is absolutely NO WASTE, is the perfect solution for me to help an old friend out.
    Date published: 2016-10-03
    Rated 1 out of 5 by from Easy to give and horse loves it! Bought this a month ago for maintenance and my horse lives it!
    Date published: 2016-09-29
    Rated 5 out of 5 by from Came super fast I bought this for my 19 year old OTT because my vet recommend I start giving him something with glucosamine MSM And C for preventing any future problems. And this has all 3. I use to just give him MSM but this one is a lot better
    Date published: 2016-09-21
    Rated 5 out of 5 by from cheaper by the larger size
    Date published: 2016-09-13
    Rated 5 out of 5 by from Excellent I bought this to simplify and reduce the number of supplements for my horse. One supplement that covers many bases is fantastic especially when it has Smartpak's quality.
    Date published: 2016-09-12
    Rated 5 out of 5 by from Great product I got this a month ago. I have a 20 year old gelding and he acts like he feels good. He runs and plays with the other horse which is 8 years old
    Date published: 2016-09-09
    Rated 5 out of 5 by from
    Date published: 2016-09-08
    Rated 5 out of 5 by from
    Date published: 2016-09-08
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