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!

great product. horse love it

very palatable for my picky pony

My horse is moving better than I've seen in a really long time and was previously on a much more expensive IM injectable joint med. I took him off of it because he's semi-retired and started him on this MSM after seeing a friend's horse going so much better. I'm honestly still shocked at the results. After 6 weeks on this, he is like a different horse and making me rethink his retirement. Shipping was fast and Mad Barn's customer service is always top notch.

My horse will not eat this , started slow , put in grain and join st walks away from the bowl. Great product and wish he would eat,

Good and palatable.

I am so happy with MagnaChrome. My pony has absolutely benefited from this supplement. I was getting a bit scared with his weight gain. With being on the same supplements for years I knew I had to change it up. Took him off everything and started all over. Switched everything to Mad Barn. Magna chrome, spirulina, copper and jiaogulan. Within a month, his heavy breathing had lessened, his weight had started coming down. I weighed him at the start and he was 946lbs and probably within 1.5-2 months he was 860lbs. Crazy. He’s still on all the supplements and he’s maintaining a great weight and energy level. So happy with all of it.

Very nice socks! Perfect amount of stretch !