We are now proud to be accredited, an industry mark of trust and transparency. Our certification means that every product you give your customer meets the highest standards of safety and quality.
Blended and packed in the United States from domestic and globally sourced ingredients.
Our manufacturing is third-party audited for full transparency.
Our product labels meet strict guidelines.
We ensure purity and consistency in every batch.
From ingredients to packaging, we provide full transparency.
Our products meet top industry standards, with expert input.
As seen on sponsored content
Backed by research
Third-party tested
Dosed to the studies
60 Day Money Back Gurantee
Supports bone density, connective tissue, joint lubrication and hoof strength — in one daily powder.
9.92 lb (4.5 kg) tub. One scoop daily, mixed into his normal feed.
The perks:
Overall rating: 4.7 / 5 from 303 reviews.
Horses do not like they eat around the pellets even if I try to mask with my Camelina oil but the customer service was great and do to the unfortunate nature of my picky horses they did refund me and were extremely helpful- great company I will use again
My ottb hadsuch a huge improvement eith overall soundness and comfortability when I started him on Foundation Complex.I absolutely love this product!
Really helps keep our barrel horses moving freely
Since starting Foundation Complex 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 .
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 Foundation Complex and he’s thriving. No soreness, no tendon or joint issues.This is a great product to ensure safe growing while being trained.
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 Foundation Complex 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.
I feed Foundation Complex 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.
This is Hobbysgun Thief aka Gunner my 31 year retired reining horse. Reserve World Champion ❤️Thanks to Foundation Complexhe 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 Foundation Complex 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.
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!!!
Good product, my gelding seems to be moving a bit easier on it. Took a few weeks before I noticed a real difference but glad I stuck with it.
28 yrs old keeps him ostio keeps him moving! Love this product!
Tub arrived with a split in the side and a fair bit had spilled in the box. I dropped support a message and they had a fresh one in the mail the next day, which got here promptly. Product is doing the job for my mare, just a frustrating first impression.
I use both Foundation Complex and max calm and I can’t say enough good about these products! Foundation Complex 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 andI 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!
My vet recommended trying a joint supplement and this one's been good. Noticeable improvement after about a month.
I love feeding Foundation Complex to my yearling! It’s a great product that I plan to use with all mine
Keeps our 25 year old gelding looking and feeling great !
Tub arrived with the lid slightly cracked but contents were fine. I let support know and they offered to send a replacement straight away which was kind of them. Product is working well for my horse.
I started my 20 year old horse on Foundation Complex 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 Equin
Great products!
Happy with Foundation Complex so far. My mare is a picky eater and it took her a little while to warm up to it but she eats it now no problem.
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 Foundation Complex 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. Foundation Complex is absolutely the best!
My horse seems to like the taste which is half the battle. Slowly seeing some good changes in how he carries himself.
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 Foundation Complex. Pictures are from the day we got him and then 3 weeks later on Foundation Complex 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.
My mare has kissing spine and my vet highly recommended the Foundation Complex..she’s remained sound since being on this..love it
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
The first two pictures are of our 25 + year old gelding. He was looking quite rough last fall. We started using Foundation Complex 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!!
Like the product. My horse is moving better and the price isn't unreasonable for what you get. Will reorder.
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.
I started adding Foundation Complex in February and after a little while 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 ho...
The Foundation Complex 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.
So im seeing good results with this product
I've had my two guys on Foundation Complex 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.
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.
My mare is doing well on it. She's an easy keeper so I was nervous about adding anything but it suits her fine.
Good for my OTTB. He's never going to be sound enough for the show ring again but he's much more comfortable hacking around.
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!!!!
Have two horses on this and both seem to be doing well. One had some hock soreness that's eased off since starting.
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 Equin 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...
Aurora went from barely tolerating her hind legs being handled to running barrels!After only four weeks of using Foundation Complex, 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 Foundation Complex. Our veterinarian and farrier are both beyond impressed with the improvements with Aurora’s legs. We’re thrilled.
My boy is 22 years old and he’s been moving so much better on the Foundation Complex! Love it!
Every order is covered for 60 days.
Try Equin risk-free for 60 days. If you don't see a difference in how your horse moves, feels, and performs - we'll refund every penny. No questions asked.
100% Protected Chekout
