Pro-Sweet is a sugar syrup that is formulated to mimic nectar using disaccharide and monodisaccharide sugars. With the disaccharides acting like natural nectar and monodisaccharides acting like honey, it not only stimulates the bees but also helps add weight to the hive. Pro-Sweet's high sugar content and low pH prevent fermentation and inhibit bacterial growth, providing more benefits than simply feeding sugar water to your bees.Made in the USA!