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Product Description

Essential respiratory support, Aleira helps maintain optimal respiratory function in a daily, non-medicated supplement.

Does your horse suffer from chronic respiratory conditions? Difficulty breathing? Allergies, hives or dermatitis? Aleira’s exclusive, research-backed formula is the solution for bleeders and horses with common respiratory issues.
Omega-3 Fatty Acids effectively address immune and respiratory problems. But it takes the right, vegetarian source of Omega-3 Fatty Acids for your horse to see the full benefits.
Not all Omega-3s are created equal and not all contain DHA. Other Omega-3 supplements rely on fish oil or flaxseed as the Omega-3 Fatty Acid source. These supplements aren’t easily absorbed or as beneficial as algae-based DHA. Aleira uses the same, safe algae-derived DHA used in infant formula for people.
Aleira is a unique blend of algal-DHA, antioxidant-rich mushrooms, Vitamin C and MSM. This effective combo addresses inflammation and immune responses for horses with a range of respiratory issues.
Arenus is proud to offer Aleira as a true respiratory aid for horses with breathing problems.



  • Improved performance: Addressing airway challenges keeps your horse comfortable and at the top of their game. Aleira offers effective support for bleeders and horses with respiratory or immune responses. Combats performance limiting conditions like Recurrent Airway Obstruction (RAO), Inflammatory Airway Disease (IAD), allergies, hives and dermatitis.
  • Non-medicinal alternative: Powerful respiratory support without the negative side effects of traditional treatments like steroids. Safe for horses that are sensitive to traditional medications. In many cases, horses using Aleira are able to reduce or eliminate their steroid use!
  • Safe to use: Can be safely combined with conventional treatments for additional respiratory health support. Safe for long-term maintenance.



Our research-proven and patent-pending formula offers a unique solution for a wide range of the respiratory health issues. The ingredients work together to provide unmatched respiratory support.
  • The right DHA source: Aleira uses a purified, concentrated source of Omega-3 algal-DHA. DHA is one of the most beneficial, natural Omega-3 Fatty Acids and provides advanced respiratory support. Other Omega-3 supplements that use flaxseed don’t contain beneficial DHA. They contain ALA that doesn’t provide the same benefits. Omega-3 supplements using fish oil expose the horse to heavy metal toxicity. Horses are herbivores and can’t use fish oil sources as efficiently as algae based formulas. Because our DHA comes from purified vegetarian algae it can be easily absorbed for maximum results.
  • Proprietary Mushroom Matrix: Exclusive trio of ground mushrooms provides strong antioxidant support, addresses respiratory inflammation and supports the pleural tissues.
  • Exclusive formula: Aleira combines algal-DHA, our Mushroom Matrix, Vitamin C and MSM into a powerful supplement. Patent pending, this formula is unique and unmatched by any other supplement on the market.
  • Research proven: Our research was conducted on horses supplemented with the exact doses of our product that we recommend for our customers. Studies proved that Aleira was effective in improving common airway conditions like RAO and IAD. Clinically shown to address performance limiting conditions like EIPH or bleeders with success.


Nogradi N, Couetil LL, Messick J, Stochelski MA, Burgess JA. Evaluation of an Omega-3 Fatty Acid Containing Feed Supplement in the Management of Horses with Chronic Lower Airway Inflammatory Diseases.  J Vet Intern Med 2015; 29: 299-306.






Ponies (1-500lbs)

1/2 scoop per day

Horses (501-1000 lbs)

1 scoop per day

Draft (1001-2000 lbs)

2 scoops per day

Aleira 2.8 lb 90 servings 45 servings 22 servings
Aleira 5.6 lb 180 servings 90 servings 45 servings



Calculated at one scoop per day dosing.

Product Price Price Per Day
Aleira 2.8 lb $169.95 $3.78
Aleira 5.6 lb $295.00 $3.28








Product Videos

3-Day Event rider Jennie Brannigan talks Aleira 02:52

3-Day Event rider Jennie Brannigan speaks about her success with her horse Ping and the respiratory supplement Aleira.

  • 3-Day Event ri...
    3-Day Event rider Jennie Brannigan speaks about her success wi...

Additional Information


Safety for use in pregnant animals or animals intended for breeding has not been proven. If condition worsens or does not improve, stop product administration and consult your veterinarian. An examination from a veterinarian is recommended prior to using the product.

For equine use only. Keep out of reach of children. In case of accidental overdose, contact a health professional immediately. This product should not be given to animals intended for human consumption.


Orally administer one 30g scoop (included) per 1100lb of body weight daily.

If palatability issues arise, begin feeding small amounts of Aleira for the first few days gradually working up to a full dose. Adding a few ounces of water, vegetable oil or mint extract may enhance palatability.


Active Ingredients per 30g Scoop:
Methylslfonylmethane (MSM)..........................................5,000mg
Mushroom blend..............................................................2,000mg
Docosahexaenoic acid (DHA)..........................................1,500mg
Ascorbic acid (vitamin C).................................................1,000mg

Inactive Ingredients:
Alfalfa meal, artificial flavors and sweeteners (ground peppermint and peppermint extract), mixed tocopherols and proprionic acid.

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