Gathered from the bark of a small tree native to the Pacific Northwest, Frangula purshiana — Cascara Sagrada, meaning 'sacred bark' in Spanish — was introduced to Spanish missionaries in California by Indigenous peoples of the region who had long used it for bowel regulation. By the late 19th century it was listed in the U.S. Pharmacopeia, and it remained the most widely prescribed laxative in American medicine for decades — a distinction that speaks to both its remarkable effectiveness and its relative gentleness compared to harsher purgatives of the era.
Cascara Sagrada contains anthraquinone glycosides — primarily cascarosides — that stimulate peristalsis (the muscular contractions that move material through the colon) and promote healthy bowel tone over time. Unlike stimulant laxatives that operate via irritation, Cascara is considered a tonic laxative: used correctly at appropriate doses, it supports healthy bowel muscle tone rather than weakening it. It is traditionally used for occasional constipation, sluggish bowel function, and as a component of herbal cleanse and detox protocols. The bark must be aged at least one year before use, as fresh bark contains compounds that cause intense gastrointestinal cramping — properly aged cascara is significantly gentler. In Indigenous Pacific Northwest traditions, the bark's 'sacred' name reflects its honored place as a healing plant of the forest.
For a gentle and effective digestive cleanse blend, pair Cascara Sagrada with our Fennel Seed to ease any mild cramping and add carminative support, our Licorice Root to soothe the intestinal lining and balance Cascara's stimulating action, and our Ginger Root for warming digestive motility support.
Cascara Sagrada should only be used for short-term bowel support (1–2 weeks maximum) — long-term use can cause laxative dependence and electrolyte imbalance. Not for use during pregnancy or breastfeeding. Avoid if you have inflammatory bowel conditions including Crohn's disease, colitis, or intestinal obstruction. May cause potassium loss — ensure adequate dietary potassium intake when using. Not for use in children under 12. As always, consult a qualified healthcare practitioner before use, especially if you are pregnant, nursing, or taking medications.
* Classic tonic laxative — supports healthy bowel tone and regular elimination
* Anthraquinone glycosides stimulate healthy peristalsis without harsh irritation
* Used for occasional constipation and sluggish bowel function
* Historical U.S. Pharmacopeia herb — trusted in Western medicine for over a century
* Used in herbal cleanse and colon detox protocols
* 'Sacred bark' honored by Indigenous peoples of the Pacific Northwest
1. Measure 1/2–1 teaspoon of Cascara Sagrada bark per 8 oz of water.
2. Add to cold water, bring to a simmer, and decoct covered for 15 minutes.
3. Strain and drink warm — best taken at bedtime for morning results.
4. Begin with 1/2 teaspoon to assess your individual response before increasing dose.
5. Use for no more than 7–10 consecutive days. Discontinue once bowel regularity is restored.
Pair with Fennel Seed and Ginger Root to reduce any mild cramping. Drink additional water throughout the day (at least 8 cups) when using Cascara Sagrada.
