Herb Pharm prepares their Eleuthero extract from the roots of Eleutherococcus senticosus shrubs which are custom wildcrafted in their wild native habitat. The extract is made according to the original Russian Pharmacopoeia formula for Eleuthero Energy & Vitality, but is made two times stronger than the official pharmacopoeia strength. Herb Pharm Eleuthero is never fumigated or irradiated.