Cascara
Parts Used & Where Grown
Cascara is a small to medium-size tree native to the provinces and states of the Pacific coast, including British Columbia, Washington, Oregon, and northern California. The bark of the tree is removed, cut into small pieces, and dried for one year before being used medicinally. Fresh cascara bark has an emetic or vomit-inducing property and therefore is not used.
How It Works
Cascara bark is high in hydroxyanthraquinone glycosides called cascarosides. Resins, tannins, and lipids make up the bulk of the other bark ingredients. Cascarosides have a cathartic action that induces the large intestine to increase its muscular contraction (peristalsis), resulting in bowel movement.1
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