OBT Toxin Defence

Advanced Mycosorb A+ Toxin Binder support for pasture and feed-borne toxin defence.

Bind the baddies - for when pasture and feed trigger unpredictable behaviour.

When fungal growth peaks, OBT Toxin Defence Mycosorb A+ helps bind the baddies — supporting toxin defence, digestive comfort, and calm, consistent performance.

Why Riders Love It

When pastures thrive, so can hidden challenges. OBT Toxin Defence supports horses through the behavioural and physical changes often seen during warm, wet conditions when fungal toxins in pasture or feed are at their peak.

Supports mycotoxin binding and removal — assists in safely binding harmful pasture and feed-borne toxins to reduce digestive upset and protect performance.

Helps maintain composure and focus — assists horses that may become overreactive, touchy, or “looky” during high-risk seasons, helping promote a steadier, more trainable outlook.

Promotes healthy skin and coat — supports the body’s natural defence against toxin-related photosensitivity in white socks or facial markings during high-risk grazing periods.

OBT Performance Quality — trusted by riders who value horse comfort & balance, every ride, every season.

The Science Behind Mycosorb A+

Warm, wet conditions — especially in spring, autumn, or high-rainfall periods — often lead to fungal growth in pasture. Grasses such as ryegrass and paspalum can produce fungal mycotoxins that affect more than just the gut — they can influence behaviour, skin, and overall comfort. Horses may become sharper, girthier, or more reactive, sometimes seeming to “see monsters that aren’t there.”

OBT Toxin Defence supports the horse’s natural ability to handle these pasture and feed-borne challenges, helping maintain composure, condition, and digestive balance.

Mycosorb A+ is the next-generation mycotoxin binder, based on a specific yeast strain (Saccharomyces cerevisiae) and backed by more than 18 years of research. Unlike clay-based binders, it binds a wide range of mycotoxins (including aflatoxins) without absorbing vital nutrients or minerals.

Adding OBT Toxin Defence toxin binder to the diet helps support:

Digestive balance and normal nutrient absorption

Immune system function during pasture challenges

Behavioural steadiness and relaxation when mycotoxins may be affecting the nervous system

Skin and coat health, particularly in horses prone to photosensitivity or “mud fever/greasy heel”-type irritation

How to Feed

Maintenance: 1 scoop (approx 15g) daily for a 500kg horse.

In times of high fungal or mycotoxin risk: Up to 2 scoops daily.
Introduce gradually and mix into feed.
Always ensure access to clean, fresh water.

What’s Inside

Active Ingredient: Mycosorb A+® (yeast-based mycotoxin binder) - Dried Brewers Yeast, Hydrated Sodium Calcium Aluminosilicate, Algae Meal

Complete Your Routine

Pairs perfectly with:

OBT Magnesi-Calm — for magnesium-based relaxation and composure

OBT Gut Reset — for foregut and hindgut digestive support