Bee-Pro pollen substitute is a dry pollen-based food that can be fed to bees in a feeder box placed in the yard. It can also be made into patties by mixing it with high fructose corn syrup or sugar syrup and placing it in the hive. This product contains a high percentage of protein, which contains essential amino acids, while being free of natural pollen, animal by-products, and contaminants. Bee-Pro helps colonies get ready for pollination in late winter or early spring, and also keeps brood production going before and after the honey flow. This product was created specifically for commercial beekeepers who are feeding syrup to their honey bees as a source of carbohydrates and is designed to provide the bees with the nutrients they need to stay healthy and thrive.Made in the USA!