... Paste, the Specification is Propolis Content:95% or more ,Flavonoid 15% or more for Bee propolis Powder, the Specification is ... etc.Nature Bee propolis Extract Paste, with Propolis Content 98%, Flavonoid 15%, antibiotics free. Heavy metal qualified Bee Propolis Powder, ... additive, Good fluidness, with Propolis Content: 60%,70%,80% Flavonoid 9%,12%, 15%antiboitics meet EU, Japan, American Standard. ...