It's hard to find quality probiotics for horses that don't have a lot of other fillers in them and require a huge pail. Mad Barn's Optimum Probiotic is a rare gem. In fact, when the box arrived (2 days later!), I first thought there was a mistake because the package was so small. Nope! It's just so concentrated that it only requires a very small amount. I bought it to help with a detox for one of my mares and ended up putting the whole herd on it (and our donkey friend). They're all thriving - despite the cold temps and deep snow right now, they're all back to running, rearing, and playing joyfully. Thanks Mad Barn!

Cleared up my mare's liquid stool quickly.

Excellent products which have helped me in raising my yearling who is now 2! I feed Omneity and Optimum Probiotic. Thank you for your awesome advice too!

Helping my senior mare with early arthritis

The supplement is wonderful and the delivery was timely. I am a Canadian who had to switch to the USA website. I was very dissapointed to see that I had to pay an extra $200.00 for the same product.

This supplement was what my ottb was missing. We went from having so many issues to having fun riding again. I would recommend this product to anyone.

Mad Barn has been nothing but extraordinary in customer service and lending their knowledge of what is the best supplement for your horse's needs.

Heard so many great things about this product so tried it for my sensitive OTTB unfortunately I don't think he could get over the smell (so beware if your horse is super sensitive to smell) and after trying numerous different methods of introducing it he still refused to eat it. That being said I had a great experience returning the product and got store credit to use towards my next Omneity purchase!

My OTTB doing fantastic on this. Love all the minerals along with vitamins in this product.

As always Mad Barn service and products are impeccable!