Propolis is natures antiseptic marvel. Eating propolis daily in small doses can help strengthen the immune system against bacteria, fungi, and viruses, including the flu. Unlike medicine, which attacks both healthful and harmful bacteria, propolis only goes after bad bacteria. Furthermore, propolis is not affected by the various mutations of bacteria, as it works against all strains in general. Propolis is made from resin that is seeped by tree bark or buds, which bees gather and mix with waxy flakes. The bees use propolis as a lining to create sterile cells for the upcoming brood (baby bees). Our propolis tincture comes in a 1 oz. jar with a dropper.