1.Proplis content: More than 30% 2.Heavy Metal Content: Less than 2ppm 3Total Flavones: More than 14.0% 4.Apearance: black Propolis is produced by honey bees, they do it by collecting resin from trees and plants, taking it back to the hive where they work upon it, transforming it into the highly complex chemical mix. Propolis has some functions, eg: clean the blood, calm, prevent cancers, improve ...