Botanical Name: Equisitum arvense Plant Part Extracted: Fresh Spring-Harvested Herb Contains: Certified organic grain alcohol & Horsetail extractives. Description: We prepare our Horsetail Extract from fresh (undried) Equisetum arvense plants which are Custom WildcraftedT during the early spring in their natural wild habitat. To assure optimal extraction of Horsetail's bioactive compounds, we hand-harvest only young infertile plants which are then taken directly to our laboratory and promptly extracted while still fresh and succulent. Our Horsetail is never fumigated or irradiated. .