What is Cascara sagrada bark powder? Cascara sagrada is a big bush that grows in western Canada and the Pacific Northwest. The popular name "sacred bark" was given to the plant by Spanish priests, who were amazed by how well it worked. Native groups frequently used frangula purshiana as a mild cleanser and for its health benefits. We produce our cascara sagrada powder by milling bark that has aged for a year. This powder can be used to make pills or extracts. Cascara sagrada, whose name means "sacred bark," is a shrub in the American Northwest. Cascara sagrada bark powder benefits: ◉ Anti-parasitic and anti-microbial. ◉ Detoxification. ◉ Digestive Health. ◉ Laxative / constipation. Buy it from the natural health food store in the USA - Alive Herbals.