Why ImmuBiome
Veterinarian formulated.
Formulas built for horses · Real results · Transparent ingredients
Trusted in the barn
5,500+
Reviews
From horse owners who reorder
4.9
Out of 5
Average rating from horse owners
11
Formulas
Targeted for equine needs
Idaho
Ships from Eden
UPS · free shipping on Subscribe orders
Why we exist
ImmuBiome began with founders Chris and Mark and a shared goal: change how horses are cared for from the inside out.
One spent years in barns with thousands of horses. The other spent decades in the lab studying the microbiome. Put those together and you get formulas built around medicinal mushrooms, prebiotics, probiotics, and colostrum, made for horses rather than borrowed from a people aisle.
Co-founder · “Mushroom man”
Chris co-founded ImmuBiome and is known across the industry as the “mushroom man.” He has spent more than 15 years working with thousands of horses, so he knows what a horse owner is up against day to day. His own battle with progressive multiple sclerosis sharpened his drive to find what actually works.
Co-founder · Microbiome science
Mark co-founded ImmuBiome and brings 35 years of microbiome science from MicroBasics. He pairs lab rigor with real equine care, so the science has to hold up in the barn, not just on paper. Together, he and Chris built the formulas around medicinal mushrooms, prebiotics, probiotics, and colostrum.
Team · Runs the day to day
Matt is part of the ImmuBiome team alongside Chris and Mark, and he runs the business day to day. His job is making sure horse owners, competitors, and vets get the support the formulas deserve. As the company grows, that’s the part he keeps front and center.
What we believe
Why it matters
We formulate supplements that support immune function, gut health, and everyday vitality, so your horse has what it needs to show up comfortable and ready to work. Every product is grounded in research, natural ingredients, and rigorous standards, so you can trust what goes in the feed bucket.
Nature and science
Real wellness starts on the inside. We focus on the gut microbiome and immune system, pairing modern research with the best natural ingredients we can find to support the whole horse, not just chase symptoms. Quality, integrity, and transparency are non-negotiable in every formula we ship.
Curious about the research? Meet the mushrooms in our formulas or browse our whitepapers.
How we work
Science-first and horse-first: immune support, gut balance, and overall vitality from tested natural ingredients. We look for root causes, help support the horse’s natural defenses, and only put out products we’d put in front of our own animals.
What’s in the tub
What goes into every tub, and what stays out
Veterinarian formulated
Made for horses, from the start.
Human-grade ingredients
Medicinal mushrooms, prebiotics, probiotics, colostrum
No fillers
No sweeteners, no fluff in the tub
Ships from Idaho
UPS from Eden · free US shipping on Subscribe orders
At ImmuBiome, we believe in nature and science working together to support equine health from the inside out, so every horse has the chance to thrive.
★★★★★
My young hunter had 2 foraminotomy surgeries in the last 12 months and has been on the Spine & Nerve product to help his recovery. He is doing great on it! He's back to 100% and showing again.
The formulas
Ready to see why
Horse owners have left more than 5,500 reviews, with an average of 4.9 out of 5, and 99% of them are four or five stars. Shop the formulas, apply for the Vet Advantage Program if you practice, or give us a call at 1-888-31-HORSE.
