Echinacea P.E 1.Polyphenols 2%, 4%UV 2.Chicoric Acid 1%, 2%, 3%, 4% HPLC 3.100% natural ... extract immune activity, anti-virus Echinacea P.E1.Polyphenols 2%, 4%UV2.Chicoric ... Acid 1%, 2%, 3%, 4% HPLC3.good immune ... < 20ppmArsenic(As)< 2ppmLead(Pb)< 2ppmAssayPolyphenols by UV> 4.0%Total Plate Count< 10,000cfu/GYeast & Mold ...