Hermetica Superfood Encyclopedia
The Short Answer
Shepherd's Purse (Capsella bursa-pastoris) contains hemostatic compounds including vitamin K, flavonoids like luteolin and quercetin, and glucosinolates that provide anti-inflammatory and bleeding-control properties. The herb inhibits inflammatory mediators through p38 MAPK and NF-κB pathway suppression while promoting coagulation via vasoconstriction and astringent tannins.
CategoryLeaf & Herb
GroupHerb
Evidence LevelStrong
Primary Keywordshepherd’s purse benefits
Synergy Pairings4
Shepherd’s Purse — botanical close-up
Health Benefits
Reduces excessive bleeding, traditionally used to manage heavy menstrual flow and nosebleeds, supporting circulatory hemostasis.
Contains bioactive compounds like flavonoids and saponins that reduce inflammation and support joint health.
Combats oxidative stress and promotes cellular health through its rich content of vitamin C and phenolic compounds.
Helps stimulate digestion and relieve minor gastrointestinal discomfort, supporting digestive function.
Promotes wound healing and reduces swelling when applied topically as a poultice.
Origin & History
Natural habitat
Shepherd’s Purse (Capsella bursa-pastoris) is an annual herb native to Europe and Asia, now naturalized worldwide, thriving in disturbed or cultivated lands. Named for its triangular, purse-shaped seed pods, this humble herb has been used for centuries in traditional medicine and cuisine. It is valued for its medicinal applications, particularly in supporting circulatory and reproductive health.
“Shepherd’s Purse has been used for centuries in traditional European, Chinese, and Ayurvedic medicine for its ability to regulate bleeding, reduce inflammation, and promote healing. It was also a staple food during times of scarcity due to its abundant growth and nutritional value, celebrated as a versatile medicinal herb.”Traditional Medicine
Scientific Research
Scientific studies indicate that Shepherd's Purse possesses hemostatic properties, supporting its traditional use in managing bleeding. Research also highlights its anti-inflammatory and antioxidant potential, with bioactive compounds contributing to cellular protection and overall wellness.
Preparation & Dosage
Traditional preparation
Traditional
Consumed as a tea, tincture, or poultice for bleeding and inflammation. Leaves used as a vegetable.
Modern Uses
Incorporated into herbal supplements and skincare products for hemostatic and anti-inflammatory properties.
Dosage
1–2 teaspoons of dried herb for tea, or as directed by a healthcare provider for specific conditions.
Culinary
Young leaves can be added to salads, soups, or sautéed dishes.
Nutritional Profile
- Vitamin C: Supports immune function and acts as an antioxidant.
- Potassium: Essential for electrolyte balance.
- Calcium: Supports bone health.
- Flavonoids and Phenolic Acids: Potent antioxidants.
- Saponins and Tannins: Bioactive compounds enhancing medicinal properties.
How It Works
Mechanism of Action
Shepherd's Purse exerts anti-inflammatory effects by inhibiting LPS-induced NO, PGE2, TNF-α, and IL-6 in macrophages through suppression of p38 MAPK phosphorylation and NF-κB activation. Luteolin demonstrates potent activity with an IC50 of 9.70 μM for nitric oxide inhibition in BV-2 cells. The hemostatic action occurs through vasoconstriction from alkaloids and flavonoids, pro-coagulant effects from vitamin K, and astringent properties from tannins.
Clinical Evidence
Current evidence is limited to preclinical studies with no human clinical trials reported. In mouse carrageenan-induced paw edema models, Shepherd's Purse extract at 100-400 mg/kg demonstrated significant anti-inflammatory effects, reducing edema and inflammatory markers while increasing antioxidant enzyme SOD. In vitro studies show promising anticholinesterase activity with hexane extract achieving IC50 of 7.24 μg/mL against acetylcholinesterase. The lack of human trials represents a significant evidence gap requiring clinical validation of traditional uses.
Safety & Interactions
Shepherd's Purse is generally considered safe based on traditional food use, with animal studies showing no major adverse effects at doses up to 400 mg/kg. The vitamin K content may antagonize anticoagulant medications like warfarin due to hemostatic effects, requiring medical supervision for patients on blood thinners. Traditional use suggests contraindication during pregnancy and breastfeeding due to potential uterine stimulant effects. The anticholinesterase activity warrants caution when combined with Alzheimer's medications like donepezil.
Synergy Stack
Hermetica Formulation Heuristic
Herbal amplifier
Gut & Microbiome | Immune & Inflammation
Also Known As
Capsella bursa-pastoris (L.) Medik.Shepherd's-purseBolsa de pastorBourse-à-pasteurHirtentäschelThlaspi bursa-pastoris
Frequently Asked Questions
What compounds in Shepherd's Purse provide hemostatic effects?
The hemostatic properties come from vitamin K for pro-coagulant effects, alkaloids and flavonoids for vasoconstriction, and tannins for astringent action. These compounds work synergistically to reduce bleeding by promoting blood clotting and constricting blood vessels.
How effective is Shepherd's Purse for heavy menstrual bleeding?
While traditionally used for menorrhagia, no human clinical trials have validated this application. Only preclinical studies support the hemostatic mechanisms through vitamin K and flavonoid compounds. Medical consultation is essential before using for menstrual disorders.
Can Shepherd's Purse interact with blood thinning medications?
Yes, the vitamin K content may antagonize anticoagulant drugs like warfarin by promoting blood clotting. Patients taking blood thinners should avoid Shepherd's Purse or use only under medical supervision to prevent reduced anticoagulant effectiveness.
What is the recommended dosage for Shepherd's Purse extract?
No standardized human dosing exists due to lack of clinical trials. Preclinical studies used 100-400 mg/kg in animals, but this cannot be directly translated to human use. Traditional preparations vary widely without established therapeutic ranges.
Does Shepherd's Purse have anti-inflammatory properties?
Yes, studies show it inhibits inflammatory mediators TNF-α, IL-6, and NO production through p38 MAPK and NF-κB pathway suppression. Luteolin demonstrates potent anti-inflammatory activity with IC50 of 9.70 μM in cellular studies, though human trials are needed.
Is Shepherd's Purse safe to use during pregnancy and breastfeeding?
Shepherd's Purse should be avoided during pregnancy due to its uterotonic properties, which may stimulate uterine contractions and increase miscarriage risk. While traditionally used postpartum to reduce bleeding, pregnant women should consult their healthcare provider before use. Limited safety data exists for breastfeeding, so caution is advised during lactation.
What foods naturally contain Shepherd's Purse, and can dietary sources provide therapeutic benefits?
Shepherd's Purse is a leafy green herb that can be foraged or purchased fresh from specialty markets and used in salads, soups, and stir-fries. While the herb is edible as food, achieving therapeutic hemostatic or anti-inflammatory effects typically requires concentrated extracts or standardized supplements rather than typical dietary portions. The bioactive compounds are present in fresh leaves but in lower concentrations than in processed supplement forms.
What does clinical research show about Shepherd's Purse effectiveness compared to conventional treatments for heavy bleeding?
Limited clinical trials support Shepherd's Purse for menorrhagia, with most evidence coming from traditional use and in vitro studies rather than large-scale human trials. Some small studies suggest efficacy comparable to certain conventional herbal remedies, though evidence is weaker than for pharmaceutical hemostatic agents. More rigorous, well-designed clinical research is needed to establish its precise therapeutic value against modern standard treatments.
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