A resin material made by bees from the buds of trees and used in the construction of the beehive propolis contains powerful nutrients that help create a protective environment sometimes described as a kind of hive immune system. Flavonoids and polyphenols naturally found in propolis may have a similar effect on human health and are thought to help support normal healthy immune function. Naturally occurring amino acids and trace amounts of vitamins A B-complex and E round out propolis impressive nutritional profile. Solaray Propolis Plus combines this potent resin from bee colonies with royal jelly and bee pollen substances believed to offer support for your immune system and your overall health. Like all Solaray products Propolis Plus is lab verified for potency purity and identity. Confidence in the Solaray name is just one of the reasons we ve been around so long and maintain our place as a leader in the industry. Unlike many other companies we manufacture almost all our own products. This gives us the ability to thoroughly test and screen raw ingredients for the slightest amount of impurities and manage the production process to give you the best possible quality. In fact we re so committed to quality that if an ingredient doesn t meet our unparalleled standard we send it back. Rest assured only the purest formulas ever reach your cabinet. When it comes to immune support we ve learned a lot from the bees. Try Solaray Propolis Plus for your overall health!