Last verified: 9 days ago
Hydrangea Root
Also known as: Hydrangea arborescens, Wild Hydrangea, Seven Barks, Smooth Hydrangea Root
Evidence under review. — Not yet rated
Traditional herb used for urinary and kidney support. No clinical trials confirm its effectiveness.
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What it does
Hydrangea root is the dried root of the Hydrangea arborescens shrub, used historically in Native American and folk medicine. It has traditionally been used to support urinary tract health and to...
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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
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Found in
What the Science Says
Hydrangea root is the dried root of the Hydrangea arborescens shrub, used historically in Native American and folk medicine. It has traditionally been used to support urinary tract health and to help pass kidney stones, with practitioners believing it may help soften or break down mineral deposits in the urinary system. However, no clinical trials have been conducted to verify these traditional uses, so its actual effectiveness in humans remains unproven.
What It Doesn't Do
Not proven to dissolve kidney stones — this is a traditional claim with zero clinical backing. Won't treat urinary tract infections. No evidence it detoxifies the body in any meaningful way. Not a substitute for medical treatment of kidney or bladder conditions.
Evidence-Based Benefits
Hydrangea root is the dried root of the Hydrangea arborescens shrub, used historically in Native American and folk medicine. It has traditionally been used to support urinary tract health and to help pass kidney stones, with practitioners believing it may help soften or break down mineral deposits in the urinary system. However, no clinical trials have been conducted to verify these traditional uses, so its actual effectiveness in humans remains unproven.
Weak EvidenceEffective at: No established dose
Source: auto-research
Absorption & Bioavailability
Unknown — no pharmacokinetic or absorption studies have been conducted in humans.
Red Flags to Watch For
- No clinical trials exist to support any health claims — all uses are based on traditional or anecdotal evidence only
- Hydrangea contains compounds (hydrangin/coumarin glycosides) that may be toxic in large doses — safe dosing thresholds are not established
- Should not be used as a replacement for medical evaluation of kidney stones or urinary tract problems
- Widely sold in supplements despite appearing in only 2 indexed research papers — popularity far outpaces evidence
- Potential drug interactions are unknown due to lack of research
Products Containing Hydrangea Root
See how Hydrangea Root is used in these analyzed products:
Research Sources
- General knowledge
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-05-01