Last verified: today
Collinsonia Root
Also known as: Stoneroot, Collinsonia canadensis, Horse Balm, Richweed, Hardback
Evidence under review. — Not yet rated
Traditional herb used for hemorrhoids and digestive issues. No clinical trials confirm its effectiveness.
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What it does
Collinsonia root, also called stoneroot, is a North American plant used in traditional herbal medicine for centuries. Herbalists have historically used it to support venous tone — meaning it may...
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Evidence quality
Evidence base hasn't been formally rated yet. See research below.
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Clinical dose
No established dose
What the Science Says
Collinsonia root, also called stoneroot, is a North American plant used in traditional herbal medicine for centuries. Herbalists have historically used it to support venous tone — meaning it may help strengthen blood vessel walls — and to relieve symptoms of hemorrhoids, varicose veins, and pelvic congestion. It also has a long history of use for digestive complaints including constipation and irritable bowel. No clinical trials have been published to confirm these traditional uses, so all claims remain based on historical practice rather than modern evidence.
What It Doesn't Do
No proven ability to cure hemorrhoids or varicose veins. Not a substitute for medical treatment of venous disease. No clinical evidence it improves digestion or relieves constipation. Not shown to reduce inflammation in any human trial. Marketing claims about 'vascular support' are based on tradition, not science.
Evidence-Based Benefits
Traditionally used to relieve hemorrhoid discomfort, but no clinical trials confirm this effect.
Weak EvidenceEffective at: No established dose
Historically used to support vein wall strength and reduce pelvic congestion symptoms.
Weak EvidenceEffective at: No established dose
Absorption & Bioavailability
Unknown — no pharmacokinetic studies have been conducted on Collinsonia root extracts.
Red Flags to Watch For
- Zero published clinical trials — all uses are based on traditional herbalism with no modern human evidence
- No standardized dosing exists, making it impossible to know if any product contains an effective or safe amount
- Appears in over 1,000 registered supplement products despite having no clinical research base
- May interact with blood thinners or medications affecting blood pressure due to its purported vascular effects — consult a doctor before use
- Pregnant or breastfeeding individuals should avoid it due to complete lack of safety data
Research Sources
- General knowledge — no PubMed papers were available for this ingredient. Assessment based on traditional use history and absence of clinical evidence.
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-25