OFFICIAL CASCARA SAGRADA (Frangula purshiana) - is a wild crafted herb that grows naturally in northwestern North America and it draws all of its nutrients from the earth naturally. Official Cascara sagrada is not farmed or sprayed with any kind of pesticide. Cascara sagrada was once available as an over-the-counter herbal laxative. If it is taken orally for laxative purposes, it’s commonly recommended for no longer than a week of use and with caution.