... more ,Flavonoid 15% or more for Bee propolis Powder, the Specification is Propolis Content:70% or more ,Flavonoid 12% or ... into Jelly substance by bees.The basic ingredient of propolis are tree balm compound, phenol substance and amylose. ... , hepatocirrhosis, astriction, polypi, bilestone etc.Nature Bee propolis Extract Paste, with Propolis Content 98%, Flavonoid 15%, antibiotics free. Heavy metal ...