Osteo-MAX
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- $195.00
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Osteo-MAX is a 3-in-1 liquid equine supplement formulated to support bone density, joint mobility, and connective tissue health in horses of all ages and disciplines.
Key Benefits
- Supports healthy bone density and mineralization
- Promotes joint comfort and mobility
- Aids connective tissue repair and collagen synthesis
- Highly bioavailable liquid formula — up to 98% absorption vs. 3–30% for powders
- Palatable; horses consume readily top-dressed on feed
Key Ingredients
- Orthosilicic Acid (OSA) — supports collagen synthesis and bone formation
- Hyaluronic Acid (HA) — supports joint fluid viscosity and soft tissue hydration
- Vitamin K2 (MK-7) — directs calcium to bones; supports cardiovascular health
Who It's For
Performance horses, senior horses, young growing horses, and any horse requiring targeted bone, joint, and connective tissue support.
Directions for Use
Top-dress the recommended daily serving onto your horse's feed. Shake well before use. See product label for feeding guidelines by weight.
Backed by Science
- Mandotori, D. (2021) — Vitamin K2's dual role in bone health and vascular calcification
- Reffitt, D.M. et al. (2003) — Orthosilicic acid stimulates collagen type I synthesis and osteoblast differentiation
- Zhou, H. et al. (2019) — Orthosilicic acid accelerates bone formation
- Neuenschwander, H.M. et al. (2019) — Hyaluronic acid deficiency in equine joint disease
Manufactured by 100X Equine, LLC in the USA. Chief Veterinary Officer: Dr. Russ Peterson, DVM, MS, DACVSMR.
Available Sizes
1 Gallon (OM100) · 2 Gallons (OM200) · 4 Gallons (OM400)
Brandy U.
I can tell my horse is moving better and his coat is very shiney
Misti R.
I have seen a tremendous difference in my barrel horses.
Karen H.
All my dogs love it
Candice R.
Osteo-Max helps keep my mare moving well. She is getting older and needs some help with arthritis. Osteo-max is proven to work; it's worth the price to actually see her moving better and willing to lay down and get up.
Elizabeth H.
My horse no longer stumbles!
Lynn M.
The Absolute best supplement we have ever used
6 year old Gelding with a Stifle injury is 80% better
20 year old Mare with Arthritis is acting like a young Horse
Thank you so much, we Love it❤️
Stephanie S.
Such a great product, has really improved our mare's arthritis.
Lisa D.
this is a great product. Easy to use and my horse eats it well. No mess. Ordering and shipping is always easy and the products arrive in a quick manor. The sales offered are of great discounts and they seem to have them run several times a year. I highly recommend this to my horse friends and they have become new users of the product. Thank you.
Tori C.
Osteomax has helped my horse SO much! Since using this product, we have stopped considering injections because he moves so much better on this. Highly recommend!
Dustin R.
It has been great!!!
Vicky L.
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Melanie A.
Keeps my boy going
Stephanie D.
This is great
TANGELA W.
Started out using the flex and gut x. Now ive added the osteo x. I highly recommend these 3. You will not be disappointed. My mare is moving better . I no longer hear the popping in her joints. Give these items a try. You'll be glad that you did and so will your horse.
Michele S.
WORKS.....
Heather G.
Zuri is 6 weeks old, but she's been recieving the benefits of OsteoMax through her entire growth process. When it was confirmed her mother was pregnant GutX staff provided me with the information I needed when i called. They suggested 2 pumps a day instead of just one...so there would be enough to go around. Her mom will stay on 2 pumps/day until Zuri is weaned.
Terri M.
Quarter pony has some arthritis in his back. He’s a pleaser and wants to work but any prolonged riding and working causes him to be stiff moving especially the next day. Osteomax has helped give him relief and enables him to move better.
Kim L.
Toby is 28 years old and it appears Osteomax has helped keep him healthy and active and made his mane and tail softer and not as dried out.
Gail T.
We have had this former Grand Prix jumper on Osteo-Max for four years. It has extended his career and kept him sound to continue competing in the lower-level jumper classes for this duration. He is still going strong.
Sue L.
My mare moves so much better than she did and I think Osteo-Max is a great product
Carly D.
At the suggestion of a trainer, I tried OsteoMax to treat a “buckling” in the left carpus (radiographs show no reason for the buckling/tripping and massage and chiropractic didn’t solve the issue). After a few weeks of giving OsteoMax, my horse was sound! After almost a year, a tried to wean him off of OsteoMax, but the tripping returned. So, we’ll give it forever because it works GREAT! The vet and I are thrilled with the results and not using NSAIDs! I highly recommend OsteoMax!
Everardo E.
My horse was having problems with arthritis and after sic months on osteo max and a couple of injections , he is almost as good as new . He has been able to get back to his sport which is team roping and has been doing good at it .
Andrea K.
My girl is 20 and started having joint issues a couple years ago. I found osteo- max last year and it's the best I've found. Nothing else works as well as this stuff. Its worth the investment.
Janie E.
My mare moves much better after we started her on Osteo-Max. Very happy with the results.
Kathy L.
My horse is 31 years old. Osteomax was recommended to me by a former barn manager a year ago. He's moving well, showing less discomfort and is more willing to work at a trot as well as some cantering since starting Osteomax.
Stacy S.
We brought home a skinny 24 year old Quarter Horse. He was thin, holding on to his winter coat and cracked and popped with every step. He was bright eyed though. He wanted to live.
I started Osteo-Max on the recommendation of a friend and I’m loving the results. His legs are half the size they were.
Stacy H.
Osteo Max has helped my OTTB to keep his Navicular disease at bay for 4 1/2 years. It also helped in a full recovery of a deep digital flexor tendon tear in Feb. 2025. I highly recommend this awesome product!
Janet P.
This was at the beginning of the summer by summer’s end my old mare was walking without the limp. Excellent product. Excellent results. Still using the max!
leslie k.
I started it on my 26 year old mare with navicular about 3 years ago and she is actually doing very well she has some days where she flares up if she over does it
Also started about a year ago on my 28-year-old gelding who was getting a bit stiff and not moving as fluidly but he seems to be doing very well now and looks like even some of the swelling and calcification has lessened
JOAN A.
All my old horses are doing well on this product. Have recommended it to a lot of people
Becky I.
I haven't notice a difference yet but she hasn't been on it long. Thank you
Cricket H.
We love this for our horses and dogs
Rita S.
It has helped my 26 year old horse move easier since using it not so sure the 13 years old has improved much. The cost is too expensive to give as a gift to try and help others with limited imcome.
Alexandra S.
Product works great!
Judy S.
I have had my Paso Fino on Osteo Max for 2 - 3 years to keep his joints lubricated and keep him sound. He is 21 now and doing good.
Eva H.
My ottb had such a huge improvement eith overall soundness and comfortability when I started him on osteomax. I absolutely love this product!
Brent M.
Working good so far
Eileen M.
this product helps keep my horses moving free and easy
Linda M.
Tami is sound on Osteo-MAX!
Charlene C.
Really helps keep our barrel horses moving freely
Stephanie S.
Protecting growing horses! This guy was growthy as a yearling to the point we did turnout and pulled all grain. Starting back early spring we put him on Osteomax and he’s thriving. No soreness, no tendon or joint issues. This is a great product to ensure safe growing while being trained.
Vickie Lynn G.
Since starting osteomax for my retired senior gelding show pony , he has been more comfortable and consistent in his workouts. It has saved my from getting injections ! The vet noticed a difference in hocks flexion and floaty gaits now .
Kathleen R.
A great product
Doris K.
My horse is a 20 yr old with navicular. Osteo Max came highly recommended. He eats it readily and runs around the pasture like he feels good again. It makes me feel good to see him that way
Marsha C.
My horse has been on Osteomax for about 6 months. He was looking thin, his coat wasn’t shiny and he was showing signs of arthritis. He is in such good shape now. Shiny coat
He is eager to eat his supplement instead of turning away from it as he does with powders and pellet supplements I have tried.
He is so happy and always gives me a giant smile!
Jennifer H.
Maybe if you're like me, OsteoMax is not the first thing to think of for hoof health, but my friend recommended it and I read what it does to overall condition, so I thought why not! So far so good. They weren't sure of the taste but I add a little water to the feed and it's a happy camper! I can't wait to see the results.
Crystal R.
Have an older TB. Seen huge difference in his movements. Also use the amino max really picked his head up.
Sheila S.
I feel that Osteo-Max is a great supplement for my older horses.
Karen S.
really helps
Linda B.
Great products and services
Haley S.
This is our recent rescue, Boone. Boone was pulled from a kill pen in Texas about 5 weeks ago. He could barely walk when he arrived due to severe neglect and moderate navicular and decided to add Osteo-Max into our care regiment in hopes we could make him more comfortable and give him a chance at rehabilitation. This video is Boone RUNNING up for breakfast yesterday morning. A month ago he could barely walk. We will most definitely continue to use this product.
Gloria L.
My horse is in her 20s. She has been on this for a couple of years now...
Laurie J.
My horses seem to stay sound more
Sara L.
I feed Osteomax to my senior horse (the one on the right) who is nearly 20, and notice that she moves better and looks great for her riding lessons to little kids. It's an investment but it feels good that I'm helping my horses move well and have the ability to do what I'm asking of them.
Terril G.
My 20 year old gelding had some arthritis issues was recommend this product and have been using it for about a year now. I love it he acts and gets around the a young horse. Granddaughter is doing fun shows with him and he handles it like a champ. Would recommend to anyone .
Susan C.
It's still in the box since I already had most of a gallon to use first. My horse has been using Osteo-Max for a few years now.
Katrina C.
Love the OsteoMax!!!
Cindy M.
Have been using this product for approximately 5 years on a mare who had the medial and distal suspensory ligament tear. Case was pretty severe. The addition of this product greatly improved the healing process. She is now sound at the walk and trot,
Also been using for two years on an aged mare with severe arthritis. It helps her be more comfortable without constant NASIDS.
Ashley
Second round buying this. Healed a stifle injury on my horse years ago. Now my niece is riding him and likes to run. Hes 22 and has the heart of a 3 year old. I decided to put him back on this for his comfort, health and longevity for her riding years.
Denise M.
This is Hobbysgun Thief aka Gunner my 31 year retired reining horse. Reserve World Champion ❤️Thanks to Osteomax he is still cruising down the trail and enjoys grazing in the pasture pain free. This picture was taken June 1 2026.
We started him on Osteomax 2 years ago because he had a clicking sound in his hips. Normal arthritis but we wanted to give him as much comfort as possible.
June 10th he will be 31 years old.
Sharon L.
This is a fantastic product! My horse loves the taste. I take it myself also. I can tell on myself that it really helps with inflammation!!!
Linda G.
It’s really great.Help my mini a lot . He had fonder and it helped a lot.
Linda T.
Osteomax has been helpful for my two horses, 18 and20. The owner of the barn has an older horse and has started using the product as well, and likes it very much.
Kim R.
Best products! Love the barn pricing and how fast it comes
Ralph R.
Not just for the older horses out there. Keeps my youngster free of issues and happy to go to work!
Hannah S.
My horse has been on Osteomax since shortly after I purchased him almost three years ago when he showed signs of starting very stiff, especially over his back. He is big (over 17h) and has had a long, demanding career. I firmly believe Osteomax has kept him off a regular dose of NSAIDs. He feels great every day, successfully competes on the A-circuit adult hunters, and everyone is always shocked to hear he's 17.
Judy J.
About six months ago, my three year-old old schnauzer got injured playing with her whippit, brother. We gave it plenty of time to heal, and she always wouldn’t end up with a limp. I decided to try her on Osteo and she has not lent another day ever since and her brother has tackled her numerous times.
Steve F.
Great soft tissue helper!
Kelli
My 28 year old horse is out running around like hes 10 again. I love this product
Cindi K.
Good products.
Billie Jo S.
28 yrs old keeps him ostio keeps him moving! Love this product!
Maison M.
I use both osteo max and max calm and I can’t say enough good about these products! Osteo max keeps us feeling good on the long summer runs. I use max calm on my horses who tend to get nervous when I’m hauling and I can truly say I have felt a significant difference in them. Even when riding at home, they are so much calmer. I love these products!
Julaine S.
Duke seems to move better when he has this mixed in his feed.
Ashley N.
I have seen significant change with his overall comfort and he is able to move more freely and confidently!
Joey H.
Been using the Osteomax for several months and have noticed a huge improvement in my horses movement. Has been much happier running a pattern and has not been stiff before or after a workout
Damon G.
We started using Ostio-max for our labs, and the results have been remarkable. We highly recommend.
Kelsey L.
I love feeding osteo-max to my yearling! It’s a great product that I plan to use with all mine
Niki O.
Keeps our 25 year old gelding looking and feeling great !
Elizabeth H.
My horse has decreased his tripping/stumbling significantly!
Heather
Wonderful product!
Sydney B.
Love this product!
Laura R.
Keeps all our show horses feeling great!
Cathy S.
Osteomax is a standard item in my feed room. I have a 4 year old gelding on it to continue good bone and muscle tissue during training. I have a mule on it to support tendon strength in her rear hock. She had been sent to be a pasture pet. She is now 10 years old and out on Missouri trails! Lastly my 26 year old mustang who recently was diagnosed with Cushing is now regaining!
This product is amazing!
Wanda T.
I started my 20 year old horse on osteo max about a year ago, he was struggling to stay sound from a torn suspensory. Since then he hasn’t had any problems, now I’m also giving him gut x.
Thank you 100xequine
Rhondie J.
This has really helped our old horse enjoy his life more comfortably since we began using it!
Jea H.
I noticed my Morgan gelding was showing stiffness especially in the right hind back in 2020. The vet recommended Pentasan and I used that for about 2 years. It helped, but it was no longer available. I tried Osteo Max in April of 2023 and he has been on it faithfully since then. It is so much better than the Pentasan and he shows no signs of stiffness or arthritis. He will be 30 years old in June and we still ride the trails. Osteo Max is absolutely the best!
Susan S.
Flynn was diagnosed with navicular at 6 yrs old .. he isn’t sound to ride but he IS field sound and most important he is comfortable. I truly believe that Osteo-max is a big part of that reason!! Thank you for this product!
Lisa W.
Great products!
Donna C.
My horse was giving on front leg then back leg. Had vet out she could find nothing. I tried supplements for arthritis but that didn’t help either. I saw Osteo Max on FB and thought why not I’ll give it a try. I have used this since last fall and it’s now May. No issues with his legs. I will always use this product. Still don’t know what caused these issues but Osteo Max fixed it!
Linda N.
I have used Osteo Max for a few years, now. When I first bought my gelding, he was under weight, his hair looked bad & he just didn’t look filled out. Within the first month, he began to blossom. His hair began to shine and shed. His weight improved tremendously and he began to fill out. He started to show more Stamina and feel better. He started to run and play. It also helped his performance overall. I started him on it on day one. If it’s my power, I will never be without it and will use it on all my horses from day one. It’s a wonder supplement!!! Wished I had it many many years ago. I tell everyone about it.
Linda & MoJo thank 100X Equine
David
We bought this 20 yr old gelding, former rope horse that had been turned out to pasture. We saw his potential to return to his glory days and turned to Osteo Max. Pictures are from the day we got him and then 3 weeks later on Osteo Max and lots of long trotting and backing. Third picture is at 5 weeks, color is different due to a door lighting. It’s great to find a product that really works and doesn’t hype them up.
Callie D.
I love Osteo-Max!! It keeps my mare running amazingly, and she enjoys it more than the grain or the cubes I feed it with!
Mary M.
18 year old Tennessee Walker moves great and looks great.
Tanya
Osteo max keeps our older horse feeling his best. The customer service is excellent.
Nina W.
Love ❤️ it saved my mare
Patricia
Fast service. Product delivered quickly.
Wendy H.
My mare has kissing spine and my vet highly recommended the Osteomax..she’s remained sound since being on this..love it
Pam J.
This mare ( VF Royal Money) is 27yrs old. She has a bum knee and some arthritis ... started her on your product and she gets around so much better. Our land is very hilly and she has stayed comfortable.
UNDERWOOD ACRES
Kris T.
Love the products been using them for years!!
KRISTINA N.
I have used the product for my dogs and Horses for a long time
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