Allergy Support for Horses

Looking for allergy and seasonal support for your horse? We start with ImmuBiome Breathe—daily nutritional support for seasonal comfort, healthy airways, and skin and coat comfort when pollen, dust, and insects peak. ImmuBiome Immune is a good second option for broader immune balance through the seasons.

These supplements are for nutritional support only. They are not intended to diagnose, treat, cure, or prevent any disease, and they do not replace veterinary care. If your horse has breathing or skin concerns, talk with your veterinarian.

SEASONAL COMFORT · RESPIRATORY SUPPORT · SKIN & COAT

Pollen season, dusty hay, arena footing, and summer insects can all make a horse’s days less comfortable. This page is for owners who want nutritional support for seasonal comfort and easy breathing—not a wall of similar products. Start with ImmuBiome Breathe, our go-to for seasonal comfort. Immune is a good add-on when you also want broader immune balance through the seasons. Then see how daily nutrition fits alongside good barn ventilation, low-dust forage, turnout, and your veterinarian’s guidance.

ImmuBiome Breathe

ImmuBiome Breathe

From $69.00
ImmuBiome Immune

ImmuBiome Immune

From $69.00

For the horse who struggles when the seasons change

Pollen, dust, and bug season can be rough—everyday support for comfort and easy breathing
Seasonal comfort support — palomino horse in a blooming spring pasture

Seasonal comfort

Daily nutritional support for horses whose comfort dips when grasses bloom, pollen counts climb, or the weather swings between seasons.

Respiratory support — calm bay horse breathing fresh morning air

Respiratory support

Cordyceps, Reishi, and Chaga mushrooms with bovine colostrum help support healthy airways and easy breathing for horses working around dusty hay, bedding, and arenas.

Skin and coat comfort — glossy chestnut horse coat in warm sunlight

Skin & coat comfort

Probiotics, prebiotics, and beta-glucans support a balanced immune response from the gut out—helping owners support everyday skin and coat comfort when insects and pollen peak.

Why Breathe for seasonal and respiratory support

Our go-to for seasonal comfort and easy breathing

We start with ImmuBiome Breathe because it’s our go-to for seasonal comfort and easy breathing. It pairs Cordyceps sinensis and militaris with Reishi, Chaga, and bovine colostrum—plus 3 billion CFU probiotics, 8,000 mg prebiotics, and 25% beta-glucans per serving—to support respiratory health, airway comfort, and resilience to everyday environmental irritants like pollen and dust.

Want broader year-round immune balance too? ImmuBiome Immune is a good second option, built on Turkey Tail and Lion’s Mane with probiotics and colostrum.

Use either alongside good barn ventilation, low-dust forage and bedding, regular turnout, and your veterinarian’s wellness plan. These supplements do not replace veterinary care. If your horse is coughing, has nasal discharge, labored breathing, or skin flare-ups, talk with your veterinarian.

Shop Breathe

Why horse owners choose ImmuBiome

Trusted by riders every day

Owner-trusted

Breathe averages 4.91★ across 500+ owner reviews

Equine-focused

Formulas designed around the horse microbiome

Ships from Idaho

UPS from Eden · free shipping on US subscriptions

30-day returns

Hassle-free returns if it is not the right fit

Horse allergy & seasonal support FAQ

Clear answers for horse owners
Does ImmuBiome replace veterinary care?
Who is this a good fit for?
Why start with Breathe?
How is this different from the Immune Support hub?
Will Breathe treat allergies, heaves, or RAO?
When does it make sense to add Immune?
How do I get started?

Breathe reviews from horse owners

Real feedback on seasonal comfort, easy breathing, and everyday performance
ProductHorseBreatheProductsGeldingImmubiome breatheResultsShippingChrisBusiness people
  • 5 stars: 503 (92%)
  • 4 stars: 35 (6%)
  • 3 stars: 5 (1%)
  • 2 stars: 0 (0%)
  • 1 star: 1 (0%)
M
Meg G. (United States)
What is your horses estimated workload?: Heavy
What is your horses discipline?: Show Jumper
What is your horses age?: 4 to 7
Effective supplements!

The G-tract has made a significant difference for my horse. He consistently got diarrhea when showing. I tried so many different products over the last 2 years. G-tract nipped it in the butt! My horse also seems to loose his wind in moderate work. Initially I chalked it up to fitness and living in Florida. But, his now fit and has been here for two summers. I added breathe - I have noticed that he's catching his breathe much quicker.
Really great products. And, the customer service is knowledgable and very helpful. Great company!

A
Anonymous (United States)
What is your horses estimated workload?: Heavy
What is your horses discipline?: Eventing
What is your horses age?: 8 to 12
works great

my mare is a high blower with a history of kissing spine and allergies. when i started her on breathe, her mucus production went down and her back softened as it got easier for her to breathe, which i was never able to get with products like spirulina. she’s decently picky, especially with powders, but after giving her a half dose for a week, i’ve been able to get her to eat it with no issues

D
David L. (United States)
What is your horses estimated workload?: Heavy
What is your horses discipline?: Racing
What is your horses age?: 8 to 12
Love love this product! My barrel horses runs

Love love this product! My barrel horses runs better because she can breath

C
Courtney L. (United States)
What is your horses estimated workload?: Light
What is your horses discipline?: Other
What is your horses age?: 21+
Great product! Breathe!

Just started my elderly senior horse on this last month who has been struggling with heaves and breathing and it has calmed it down a bit! Definitely going to keep using it! My mom also started using the Immune and her mare who had lymes and breathing issues has been doing great!

E
Elizabeth S. (United States)
What is your horses estimated workload?: Light
What is your horses discipline?: Other
What is your horses age?: 13 to 20
Thankful for the Breathe

My mare got sick with a respiratory infection and this has made an enormous difference in her healing.

A
Anita S. (United States)
What is your horses estimated workload?: Light
What is your horses discipline?: Hunter Jumper
What is your horses age?: 21+
Elmo

This product has helped my horse tremendously.

M
Megan (United States)
What is your horses estimated workload?: Medium
What is your horses discipline?: Dressage
What is your horses age?: 13 to 20
Very helpful product

I've had both my horses on Immubiome products for years and recently switched my gelding to Breathe. He has been much more relaxed and happy in his work. I highly recommend this product!

C
Customerjoy l. (United States)
What is your horses estimated workload?: Medium
What is your horses discipline?: Western
What is your horses age?: 8 to 12
Joy

I'm waiting for a longer period of taking this to make a judgment. She's only been taking a week but she might be better . She's no worse. The jury is still out.

L
Lucy r. (United States)
What is your horses estimated workload?: Light
What is your horses discipline?: Other
What is your horses age?: 8 to 12
Amazing product

This product has been the only thing that has helped my mares breathing. Along with that, it also helps with overall appearance. I could not be more happy with the product

A
Alisa K. (United States)
What is your horses estimated workload?: Heavy
What is your horses discipline?: Show Jumper
What is your horses age?: 13 to 20
We can't live without Breathe!

I imported a mirror from England six years ago with a slight breathing problem. Vet couldn't find a cause. After reading some online forms, I discovered Breathe. After year two I decided it was probably no longer needed. I was quite mistaken. Breathing issue came back. She has gone on to win multiple Grand Prix. This product makes her comfortable and able to compete at the top level! Thank you, immune biome.!

A
Anonymous (United States)
What is your horses estimated workload?: Medium
What is your horses discipline?: Other
What is your horses age?: 13 to 20
Great product!

Allergy, COPD, cough, you name it!

L
L.B. (United States)
What is your horses estimated workload?: Medium
What is your horses discipline?: Western
What is your horses age?: 8 to 12
Worked

My gelding came from wet Kentucky to Arizona and was having a bad cough and allergic reaction. Cleared up after taking for 2 weeks

R
Regina I. (United States)
What is your horses estimated workload?: Medium
What is your horses discipline?: Western
What is your horses age?: 4 to 7
Jax loves his breath

Immubiome breath is working great for my 6 yr old Appaloosa gelding that has allergy induced asthma. He eats it well and it keeps him breathing well and cough free. 100% recommend there products!

L
Laura S. (United States)
What is your horses estimated workload?: Light
What is your horses discipline?: Western
What is your horses age?: 8 to 12
Finally! Something helps!

My Clyde/QH cross really suffers in the extreme heat. This product has helped her cope with the heat and humidity. Very thankful.

L
Laura Z. (United States)
What is your horses estimated workload?: Medium
What is your horses discipline?: Hunter Jumper
What is your horses age?: 21+
Wonderful Product

My horse Willy is on Breath who has terrible heaves and asthma. He has a nebulizer, a hay steamer and special shavings because his breathing is so bad. I tried this maybe 2 years ago and I love it!!! I ran out a handful of times and I can see a huge difference so I know it works. I now have it on auto ship so I never run out! I would absolutely recommend this to anyone who has a horse with breathing issues. Willy is able to do his job as a hunter show horse and do it very well.

A
Anne (United States)
What is your horses estimated workload?: Medium
What is your horses discipline?: Dressage
What is your horses age?: 21+
No more cough!

My stallion developed a very deep cough, unlike his occasional dust/exercise induced cough. The vets had little to offer. I tried the immunebiome breathe and gave him the double dose recommended for acute cases. Cough was gone before I finished the first order (less than 2 weeks). I was very surprised and happy with the results and would make immubiome my go to for issues in the future, as addressing compromised immune systems is vital to helping resolve most health issues. THANK YOU

P
Peggy L. (United States)
What is your horses estimated workload?: Light
What is your horses discipline?: Other
What is your horses age?: 8 to 12
Won’t do without it !

My rescued Morgan use to have a horrible runny nose and would sneeze often . We started the Breathe formula and Hawk has greatly improved . Thank you for such a great product !
Hawk and Peggy Larimore

C
Crystal (United States)
What is your horses estimated workload?: Light
What is your horses discipline?: Other
What is your horses age?: 13 to 20
A supplement he'll actually eat

This is one of the few supplements that my mini will eat. He gets heaves in the summer and he eats this easily.

L
Lana C. (Canada)
What is your horses estimated workload?: Medium
What is your horses discipline?: Hunter Jumper
What is your horses age?: 13 to 20
Great results for my horse's breathing

ImmuBiome Breathe has made a huge difference for my horse! He struggled with respiratory issues, but since starting this supplement, his breathing has noticeably improved. He’s more comfortable, performing better, and overall just seems much happier. I’m so impressed with the results and highly recommend this to anyone looking for a reliable respiratory support supplement for their horse!

See all Breathe reviews

Ready for everyday seasonal & respiratory support?

Start with Breathe for seasonal comfort and easy breathing—or add Immune for broader immune balance.

Shop Breathe

Shop Breathe

Seasonal comfort and easy breathing

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