Joint Flex Plus
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- $113.50
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- $113.50
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Benefits of Joint Flex Plus
✅ Lubricates & Repairs Cartilage
✅ Reduces Inflammation
✅ Increases Joint Range
✅ Easy to Feed & Economical
✅ Peace of Mind
✅ USEF & FEI Compliant
✅ Scientifically Proven Ingredients
✅ 90 Day Money Back Guarantee
Backed by science: Designed by Dr. Russ Peterson, DVM, MS, DACVSMR (Chief Veterinary Officer, 100X Equine). Built with research-backed ingredients supported by veterinary literature. Trusted by 39,000+ horse owners.
Donna E.
In this photo I'm riding my 18 yr old Australian Stock horse cross in a polocrosse tournament. He was diagnosed about 8 years ago with SI joint problems ( after years of trying to figure it out!) Together we are still having a blast playing and he loves it. I have been using 100x Osteomax and Joint Flex religiously for years now- can't remember when I started using it, but I definitely won't be stopping!
Kaitlyn
Started this supplement on my horse just 2-3 weeks ago and the difference is amazing! He had a weird thing going on with his hind fetlock when he walked where it would twist. Well after just 2-3 weeks of using it, that has nearly disappeared. He is feeling better than ever, and moves great. Love this brand and it’s products!
Hollis H.
We felt an improvement in the way our old horses moved. It is very easy to feed.
Edna R.
Both my girls have been on Joint flex Plus for almost 2 years now and are running around chasing each other in the pasture like 5 year old. Both girls have arthritis but you wouldn't know it now. My girls and I are so glad we found your products.
Anna O.
We got our 16 year old gelding in January. He was stiff in the hind, specifically the SI area. We started him on 100x jointflex right off the bat and he is so much more comfortable. Highly recommend this stuff, it works!!
Lauren C.
Just starting the joint x for my two driving minis! Very impressed with 100xs customer service. Received a call from Madison and she was extremely helpful! Will definitely purchase more products in the future !
Cindy R.
Lemhi (closest to me) is a 26-year-old gelding who was a lesson horse for years. He came to me 2-years ago with arthritis and sore joints in his hind legs. I've been giving him Joint Flex for 2 years now, and he is visibly more comfortable and agile. He enjoys running with his friend Elko (also pictured), and is now enjoying his retirement, carefree!
Tawny K.
Have my lesson program horses on jointflex plus and my older mare on osteomax. Have seen very nice improvement in comfortability in all horse but especially in the older mare
Quinn B.
It has been great for my horse.
linda w.
I've used this product for my 26 yr old horse for 6 years now It has helped to keep her sound and therefore happy. !
Carolyn M.
My horses & dogs will not be without JointFlex Plus. Great product that really works! Thanks!!
Suzanna A.
Love these products, horses love the products as well.
Easy to feed, and pack when on the road!
Melissa C.
Storm is my 26yr old mare. She is our oldest horse on our ranch.
She suffers from Arthritis, an SI Joint that gets stuck. She has been laying around a lot in the last couple of years. I started her on Osteo Max & Joint Flex after 2 weeks I started seeing the difference. She is more energetic and playful now that she is taking things. She bucks and hops around like she is feeling much better.
Amber D.
Great addition to my feed schedule! My horses are feeling great!
Miyoung J.
What I have noticed most is that I do not hear my gelding making grinding noises in his joints when he turns. As for my mare, scrapes on her hocks are gone. They have been on Joint Flex for 3 weeks and I am expecting to see more improvement near future.
Theresa H.
Noticeable improvement
Maxon G.
Totally different movement and comfort in 25 year old mare. HIGHLY RECOMMEND!
Connie H.
Great customer service! Fast shipping. Love working with Madison.
Sondra S.
I absolutely love these products. I wish I could afford every single one of them every month for my horses and my dogs, and I probably should put myself in that too. These products are the best products I've ever used. And I always tell my horse friends to buy them. I actually have a friend who's an FEI rider and I suggested joint flex, the aminos and osteomax, along with gut X, and she loves the products. She's noticed a changed her 17-year-old geldings movement and flexibility already.
Katie M.
Great product.
Tina B.
My 29 year old Connemara/TBX gave me a fantastic century club ride. He has been sound enough since staying on joint flex. Even now, he is almost 30 and still doing wtc and jumping up to 2'. Thanks to joint flex. Before putting him on it I thought he would have to retire.
Kathleen S.
The 100X joint supplement certainly does a great job for the rescue horses I have taken into the farm! These horses have suffered various accidents in the past lives and the joint supplement is working well for the horses. Thank you for providing excellent supplements for the horses!
Makaela E.
I love this for my 23 year old gelding! I noticed he wouldn’t typically go more than a walk in the pasture, so I decided to try him on a different joint supplement. After a few weeks of being on this, he’s trotted and cantered more times than I’ve ever seen him do in the past. He just seems more comfortable. And even as a pasture puff, he definitely deserves it!
Samantha H.
Love it
Greg H.
works on an old rope horse
Tommy R.
He’s added years to his life! The ferrier can tell a difference in picking up his feet/legs. He’s loping around and feels so much better.
Lydia E.
Excellent product!
Jeanie C.
I bought the Joint X to see if it would help my old gelding. He is 24. Last fall my farrier was on his knees to trim the old guy's hind feet as it was too painful to pick up his hind legs. He has been on it for about 6 weeks. The farrier was out on Friday and was able to do him normally. I am very thankful that it worked. Have been on a few rides with him and he is the lead horse again. He has always had such a nice walk, but had been slowing down. Thank you for the product that works.
Cynthia S.
I saw my horse who has tendon injury running and bucking in the pasture We use joint flex plus. Magic is enjoying having a retirement he is 26!!!
Jason W.
My horse is making great improvements
connie L.
My mare is 21 yro she had a career of western pleasure and was sold at age 15 and then starved until I was gifted her. Now she presents arthritis in 3 areas of her left knee and the vet who xrayed and I ejected her said this was one of the best supplements and to keep her on it. She's been on it for a little more than 2 wks. She runs and trots and works out like nothing is wrong.
Jennifer H.
Recently started my search and rescue horse on 100X Joint Flex, and I’m already impressed. He has a demanding job with long hours and tough terrain, so joint support is a must. Since starting the supplement, he seems more comfortable, moving out more freely, and recovering better after rides. It’s easy to feed and he eats it without hesitation. Looking forward to seeing even more long-term benefits!
Patti H.
I bought a 23 year old mare 3 months ago that hadn't had much attention for the past 5 years. She was slow to move and a bit lame. After 2 months on daily Joint-X the vet cleared her completely from her lameness. Now she is back in to showing & winning Western Pleasure & Ranch Trail events. She has already qualified to go to State. On her time off she is loving life and galloping through the pastures with the rest of the young herd!
Addie S.
Love the joint x for our older girls and gut x for keeping everyone feeling good!
Bristol S.
This is my 20 year old gelding he is my fox hunting horse I felt like he just needed a little extra support for those super long work days and joint x did just that he duly like he was happier to do his job and it was easier for him to!!!
Amanda R.
I’ve been using Joint Flex by 100x Equine on my 22-year-old mare, and the difference has been noticeable. She moves more comfortably, seems less stiff, and has a better overall attitude under saddle. It’s easy to feed, and she eats it without any issues. For an older horse needing joint support, this has been a great addition to her routine.
Michelle B.
Pictures is smokey 25 year old Shetland we have on your flex product and he's doing great . Your products help him so much
Delaney L.
Love this stuff! My AQH that has bad ringbone, is sound and more comfortable because of this product!
James W.
Seems to help
Theresa B.
Joint Flex is keeping our young big guy, and our older guys functioning well. I’ve noticed a positive difference with the human and canine versions in the way our old bones and our older pup moves (especially getting up off the floor after a nap).
Jessica G.
My horses feel amazing on your products
Shawn G.
Have several horses on your product. See improvement on all.
Cheryl Ann E.
Keeps my 24 year old gelding sound. He has a deep flexor, in his hind leg that bothers him, he has a hard time holding up his 1 hind leg for farrier. This helps him a lot. Thank you for an awesome product.
Francesca T.
Great product, great results
George T.
It's really helped my fifteen year old calf horse
Wallace C.
Great product
Tina B.
My almost 30 year old gelding had started limping occasionally from arthritis in his front knee. After some rest and then supplementing him with Joint -flex he is sound doing walk, trot, canter and jumping small jumps (he even went cross country schooling a few days ago and jumped some beginner novice fences). He does get more rest days but he is still sound. I recently did a century ride with him and the judge said it was the best ride of the day.
Barbara H.
My horse is a 23 year old retired barrel racer. She is now a trail horse. When I first got her 8 years ago she was reluctant to go downhill. After starting her on Joint Flex about 7.5 years ago she has been fine going downhill since.
Tara J.
I am training my horse to complete longer distances for competitive trail riding. I want to give him every advantage while we are working to build his endurance. This is part of my plan to help him stay healthy!
Terry B.
I have three horses over20. This has helped them!
Pam S.
All went well as always!
Thearsea D.
Love this stuff for our 31yr old Mare!
Erica H.
I love these products!
Jill S.
My mares seem less stiff
Bristol S.
I love the joint-x I think it gives my horse extra support after she was diagnosed with Lyme she was super stiff and once we got her treated she was much better but not 100% so I am very happy I found a affordable great opportunity and now she feels back to normal if not better then normal
Jessica H.
My horse does great with the gutx and jointx combo
Just finished the 3rd gallon of gutx and 1st gallon on jointx
He no longer needs monthly injection, no longer needs chiropractor every 6 weeks and this replaced a more expensive pellet supplement.
Very happy with this combo.
PS he's a 20 or old gelding
Carolyn M.
Happiness is knowing you've spent money on a product that REALLY works!! Joint Flex Plus will always be in my stable!
RONDA L.
My 23 year-old mayor, leaps and jumps like she’s 10
Tammy T.
Great products.
Anna H.
Sonny is 21+ years old and his back left was super stiff. He’s only been on joint flex for a week and already moves so much better! I can’t wait to see how he’s doing in a month.
Jared C.
Ok
Madison Z.
Love it
Helen P.
We have started using competition horses on the 2 products as they are in or approaching their late teens. They settle into their work no matter how many days off and do run better.
Chanelle S.
Absolutely incredible products
I’ve now ordered a variety of your products for
3 of our horses and love everything
Thank you
Theresa B.
I used the joint x on my boy who has some pretty intense arthritis and it has really loosened him up and made riding so much more fun!! Pictures will never die it justice but I definitely love this stuff. Adding more products to my barn for sure.
Jo D.
My 25 year old rescued Appaloosa is doing amazingly well on Joint Flex. He used to be so tight when running along side his younger corral mate. Now they flow right along side each other.
Zelpha Grace B.
We’ve noticed a remarkable difference in our senior horse’s with a competitive career history. Happy to see them feeling amazing and not acting their age.
Sherill C.
21yo mare had started limping on back left leg. Since putting her on Joint Flex, she hasn't had a problem.
Have just started her 20yo sister on it as she's having front end stiffness.
Sharon M.
I told the whole barn that this product is a must for your animals !! It also supports your canine friends
Diana T.
I've been using all these products for several years. Various Horses ,Various Issues. Customer for Life. Nothing compares to what they can do for your horse.
Selena F.
Have used both of these products & very pleased with them both
Eileen B.
works great they look goodmand move a lot easer
Haddie W.
I love all the 100xequine products!!
The joint plus has helped my mare stay on top of her roping career before I started using this she was limp off and on and ever since I put her on this she has never limped again.
Vickie S.
I have a 28+ mare that was very stiff in the shoulders and hips. I started her on the OsteoX but she needed just a little extra. The Joint Flex seems to be the answer.
Thank you for a great product
Stephanie S.
These guys are really thriving on Max and Joint Flex. JJ is now 33 (Appy) and Loden (German Warmblood) 28. Their coat, gut and joints approve!!
Addie S.
10/10
Teri S.
I have been using these products for a long time. always my go to
Delaney S.
I have had my horse for 5 years now! He was an ex barrel horse that I turned into a hunter jumper! When he was around 11 I had to start getting his hocks injected due to slight arthritis. I was looking into all the different joint supplements, trying anything I could possibly find, and nothing seemed to do the trick. My friend told me about the JointX and he has been on it for about 4 months now, and he overall seems to move a lot less stiff, he seems happy, and I am so glad I decided to try this product! Just ordered 2 more gallons!
Dawn C.
Lindy is 30 years old. She has been retired for quite some time but for years was my main mount in barrel racing. I give her the joint flex plus supplement to help keep her feeling her best, and let me tell you, she does! There are days I’ve seen the horses run in the field and had to do a double take thinking it was one of the younger ones. Nope, it was her saying “I still got it”.
Marcie I.
Noticed the improvement right away
Lisa H.
Joint Flex Plus has made a big difference for my 21-year-old horse and his mobility. He moves more comfortably, feels looser during warm-up, and seems much happier overall under saddle. It’s reassuring to see him getting around with more ease and less stiffness.
This supplement has helped my senior horse feel like himself again. I highly recommend it to anyone looking to support joint health in an aging horse.
Kellie G.
I had this horse on GutX last year and noticed quite the difference. So in bringing him back after his winter break I've decided to put him back on it. I also added the Joint Flex and I'm already noticing a difference in the way he moves. He seems to be freeing up a but more in the hind end.
I'll be keeping him on these supplements for the entire season and probably the off season next year as well.
Anna O.
We use joint flex and the equilaser on our 15 year old POA pony lesson horse. He flies right over 2ft courses and moves without stiffness now! We love 100x!!
Kamber R.
I own a small ranch/boarding facility. I have some of my personal horses on different types of your supplements. My clients have noticed the improvements of my own horses. My clients are now your clients.
Stephanie S.
My horses seem more fit and healthy since going on this supplement!
Michael T.
My 24 yo gelding has been diagnosed with arthritis in both knees. Daily dosing seems to give more flexibility and comfort.
Teresa H.
I've been using Gut-X for several years for my performance gelding (competes in ranch riding and cattle events). I added Joint Flex when I noticed he was slightly "off" sometimes after a day off. That has made a huge difference!
My two dogs -- age 12 and 13 -- are on a glucosamine supplement for joint health. So I was thrilled to get the canine version of Joint Flex. Anxious to see how they do on this. Thanks!
Shelly D.
Madison is wonderful to work with.
Amanda R.
12 year old Maggie runs on joint flex!! This is a product we won’t go without!!
Elizabeth S.
I have a mare that's in her late teens. She was having the usual issues that age brings. Also, an old injury. I walked her over some poles the other day while riding her as I have done many times. Except this time, she didn't bump or knock them over. I think the "Joint X" had really helped her. The "GutX" is doing its job in this severe weather we have been having in the Midwest. Thank you for great products!
I almost forgot, the joint x for people has really helped my knees!
Annette K.
I started with Osteo Max and Joint X for my older donkey with problems in the front leg and I sense the limping has improved! Neither farrier nor vet could find the problem so I decided to support my donkey with this supplement.
Dominic D.
My horse had a fetlock injury and since I’ve been using the joint flex she’s been getting better every day
Cricket H.
It’s been great for our older horses as well! They look forward to getting their supplements everyday!
Julia H.
Great product
Neila W.
My 18 year old horse has osteoporosis starting in his right hand hock. Which becomes painful for him on cold day or non-riding days. I feed a squirt of100X to him every morning with his mash. He gobbles it up. It helps him stay healthy & rideable. So happy I found it on line. I usually buy 2 at a time. This time I received a free bonus with my order!
Mary-Katherine B.
Great product use on all our horses they all look and feel great!!!
Sibylle L.
Best product ever!
Kiyo T.
I’ve had my 10 year old gelding on joint flex for a few years. He’s been sound and comfortable. I decided to start my younger mare as a preventive. I took advantage of your free offer for joint flex for people. I can tell a difference at the 2 week mark. Thank you!
Addie S.
The best supplements!
Shanna N.
I have been using GutX, Joint Flex, Calm Max and OsteoMax for several years now. This is my show mare and she has been on the Joint Flex and GutX. It has kept her going the last 5 years she has been showing.
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