Since 1984 Immunity Dietary Supplement Discussion: Honeybees gather resin from tree buds and bark to make propolis. Bees coat the interior of the hive with propolis to maintain a sterile environment free from mold, mildew and bacteria. Naturally containing flavonoids, propolis is intended to help provide nutritive support for a healthy immune system. Beehive products --honey, royal jelly, bee pollen and propolis--have been used as food and medicine for thousands of years. Their healthful benefits continue to be valued today as their nutrients are identified and studied by modern research.