Osteo-MAX

Name: Osteo-MAX
Rating: 4.9 (8635 reviews)

Regular price: $195.00
Sale price: $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)

Cricket H.

We love this for our horses and dogs

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

Tracy J.

This product is amazing. I started my older mare who was having lamness issues behind on and off for a couple years. She was on the product for less than two weeks and the Lameness issues are gone and she is back to doing light lessons.

Jackie T.

The first two pictures are of our 25 + year old gelding. He was looking quite rough last fall. We started using Osteo-MAX and continued using it all fall, winter & spring. Our gelding did well during this time and even gained weight! We are very pleased with this product!!

Carla R.

One of my mares has osteoarthritis really bad in her right stifle. It has definitely helped her movement. Although she is not sound enough for competition, the product has really helped her to be pasture sound. Also, her coat is so shiny!

Diane S.

My mare is 32 and has been on Osteo-Max for 2 years. She looks great for her age. She gets one pump a day. Sometimes I giver 2 pumps. My other horse , her 28 yr old son is also on Osteo-Max. Great stuff !

Laura P.

I started adding Osteomax in February. Did not see a huge change. I decided to try Osteoflex and the improvement was amazing. My horse has ring bone in his right front and arthritis in his left knee. We took him to the vet in January and the vet told us there was nothing we could do. My horse ended up with an abscess that had been there, who knows how long, before it blew. The vet was floored like we were. My horse still can’t run but he is walking much easier. My farrier used the normal size hoof jack for the first time in almost 20 weeks. My horse has been companion only since shortly after we brought him home, due to the ring bone. His life and health are more important than riding him. My other horse would be beside himself if we lost him, too.

Taylor S.

I started using the osteomax on my 12 year old dog about a year ago and the results are unmatched. He grows annoying, fatty, benign tumors that can’t be removed due to a heart condition that doesn’t allow going under for surgery. Since using this product his tumors have shrunk to half the size and he’s so much more comfortable. On top of that great result, he’s much more active and his arthritis doesn’t bother him half of what it used to.

kassandra w.

I’ve been given this to my Horses, and my pregnant Mare. She was a maiden. Mare had the filly in an hour and a half. Filly latched on in three minutes was healthy and strong.

Ally M.

Seems to be helping my gelding with OCD and arthritis.

Shelly D.

So im seeing good results with this product

Mary M.

The Osteo-Max has helped me keep my 24-year-old retired show hunter in comfortable shape. Very pleased with the benefits of this product. It's a joy to see him out cantering around with his buddies in the pasture.

Kat H.

☀️

Stephanie C.

I've had my two guys on Osteo-Max since Sept 2025. My grey has had issues with general on and off lameness for 2-3 years. This is the first year he hasn't gone lame! He's definitely more active, not hesitant to walk, trot- even run around- which he hasn't felt like doing since he kept coming lame. And they love it, which helps so much.

Teresa D.

Great product! Improved my mares movements a lot. Highly recommended.

Abbie M.

My 23 y/o mare with chronic osteoarthritis has made a complete 180 with this product! Her stiffness has almost completely subsided, and we have been able to discontinue joint injections since beginning this product. She has worked better this season since starting OsteoMax than she has in years! Very pleased with this product and rep assistance!

Melissa S.

Using this on 3 older horses and have seen a difference in each of them

Nancy W.

Our THW girl, Ribbon, has been on OsteoMax for several years now, for hoof support after an injury. It certainly helps her maintain hoof integrity.

Judy C.

I've been using Osteo-Max and Gut X for approximately 3 years now. It's been a great supplement to our feeding program. My horse had a DDFT and Navicular issue and instead of being a pasture ornament, I still ride and enjoy him. Also have a horse prone to colic and using Gut X has greatly helped prevent those episodes. All are great products and I highly recommend!

Leslie B.

My horse has been on this since she was 2. She's now 4 and I think it's really helped her while growing and through training.

Denise G.

My horse loves this stuff, hopefully I will see good results.

Margaret W.

Since having an unexplained knee injury, 2 yrs ago, we put him on 100x, and he is moving much more comfortably and we are cantering again.

Jennine B.

Osteo-Max added to daily feed and allergy treatment has really helped improve my 20 yr old mare mules allergy symptoms.

Vicky B.

I’ve been using the Osteomax for quite a while now . It’s keeping my old guy comfortable. Thanks for a great product.

Abby W.

Absolutely loving Osteo-MAX for my horse. Since starting it, I’ve noticed a difference in comfort, movement, and overall recovery after rides. I really appreciate that it supports not only joints, but also bones, tendons, and ligaments — which is so important for performance horses. Always thankful to have products I trust to help keep my horses feeling their best!

Lindsay W.

30 days on Osteomax and i have already seen a huge difference! Chief has had issue for a while and was just diagnosed with navicular caudal heel pain July 2025. He has been on firocoxib which we have recently discontinued and i have noticed that Osteomax has done the same if not more than the firocoxib. He is 21 with a lot of life to live i am so happy osteomax has given his quality of life a boost. I am looking forward to seeing more benefits the longer we continue osteomax!

Kathleen R.

Oliver has struggled with joint issues for a very long time…. This seems to definitely be part of the long term solution…. A great product!!!!

Wendy

My veterinarian highly recommended the OsteoMax for my mare with kissing spine..she has made a 180 on this product!! Love it!

Jenna S.

While I was away at college and my horse (he’s 25) was being cared for he started to lose muscle suddenly and started to baby his hind end because his hocks and joints were so inflamed. So when I moved home I started talking to people and my one friend used 100xequine gut for her horse and since my horse had such bad osteoarthritis I decided to try it even though it was expensive I thought I might be worth it. And it is! Before going on it walking him to the barn he was limping so bad and would barely put pressure on his back legs and his hocks were so inflamed I couldn’t even fit my hand around them and he wouldn’t let me touch them. He didn’t want to go on his evening walks anymore and I was getting really scared that nothing would help. With osteomax I have seen such a huge improve as I also have therapy (ceramic heat) hock wraps from Schneider’s which have been helping to. I have seen him gain muscle back and I’ve even seen him cantering around his pasture the other day and we are even back to going on our walks. So this is definitely worth the money for him to see such a huge improvement from what we were at.

Kim A.

I’ve used the Osteo Max for probably five to 6 years and love it.

Miranda B.

My boy is 22 years old and he’s been moving so much better on the osteomax! Love it!

Shelly V.

We have two retired standardbreds, one off the track retired. He has had two severe injuries and osteo max has helped greatly. He acts like an 2 year old in the field. Our other one has had a tendon injury and this has also helped.

Nicole T.

Aurora went from barely tolerating her hind legs being handled to running barrels! After only four weeks of using OsteoMax, our farrier commented on how much easier it was to do her hooves because she could lift her hind legs with no issues and she didn’t even know we’d started OsteoMax. Our veterinarian and farrier are both beyond impressed with the improvements with Aurora’s legs. We’re thrilled.

melanie h.

This stuff rocks! My mare is 22 and has bad arthritis, she feels so much better on the osteo max! I have every one of my horses on this stuff for different reasons and they all have started to feel better!