The Manna Pro Optizyme is a probiotic supplement that provides a source of naturally occurring viable yeast, enzymes and beneficial bacteria (probiotics) that help promote optimal digestion. This horse supplement is a microbial supplement for balanced digestion. This horse optizyme comes with a 48 day supply for one mature horse. Treatment is fortified with probiotics, viable yeast and enzymes Horse supplement is formulated to enhance the digestibility of hay and grain Helps maintain body condition on less feed Meal form is easy to feed This treatment is fortified with probiotics, viable yeast and enzymes. 48 day supply for one mature horse 100% Satisfaction Guaranteed