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Optimum Probiotic - 500 g
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4.75 Rating 395 Reviews

93 %

of reviews are positive.

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Jill Pritchard 13 days ago
Verified Buyer
Great
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Leah Hoenen 17 days ago
Verified Buyer
We have used this for a pony who is prone to stress diarrhea and free fecal water, as well as a yearling who recently arrived in order to support her through the stress of moving homes. Really happy with the results for both
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Rachel Huseby 2 months ago
Verified Buyer
Can’t beat the price and quality. Thank you, Madbarn! If you soak your feed, just be sure to add it after it’s done so you don’t accidentally kill off the bacteria.
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Tracy Vroom 3 months ago
Verified Buyer
My horses are doing well on this probiotic. You can't beat the quality and the price. Thank you!
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Jessica Niehage 4 months ago
Verified Buyer
Love it! Bought the small package to try, will be upgrading size for the next order!
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Ann Usher 5 months ago
Verified Buyer
I added that Mad Barn is great with shipping fast!
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TAMARA KETTLEHUT 5 months ago
Verified Buyer
The probiotic didn’t help with firming up my senior horse’s soft manure. It was something to try, and I didn’t see any change so we discontinued using it.
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Diana Robinson 5 months ago
Verified Buyer
Did nothing for my horse, possibly because the powder is such a tiny amount one can't know for sure if it made it into the horse and wasn't blown away in the wind! Pelleted form would be so much better.
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Carolyne Stolzenfels 5 months ago
Verified Buyer
I was hoping this product would help with some "leaking" that my horse is experiencing. After 60 days, it has improved a little, but otherwise still there.
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Khristine Bryant 6 months ago
Verified Buyer
Didn’t make any difference in my horse after antibiotics, ended up having to buy a different brand
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