It is extracted by advanced co2 supercritical extraction technology from wild Chelidonium majus origin of Daxinganling Region in China.The content level of effective material is up to98%. This product has been exported to EU, Japan, East- South Asia etc.. The physical level and microbiological level can meet the export standards very well. Package: cardboard drums, with double aseptic food poly bags inside. Or by cartons, with vacual aseptic food poly bags inside, 20kgs per carton with 8 bags inside,2.5kg per bag.