Last verified: 5 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 comes from the Hydrangea arborescens shrub native to North America. It has a long history in Native American and folk herbal medicine, where it was used to support urinary tract...
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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 comes from the Hydrangea arborescens shrub native to North America. It has a long history in Native American and folk herbal medicine, where it was used to support urinary tract health and help pass kidney stones. Today it appears in supplements marketed for kidney and bladder support, but no clinical trials have been published to confirm these traditional uses in humans.
What It Doesn't Do
Not proven to dissolve or eliminate kidney stones. No clinical evidence it treats urinary tract infections. Won't replace medical treatment for kidney disease. 'Detox' claims are not backed by any published human studies.
Evidence-Based Benefits
Traditionally used to support urinary tract health and ease discomfort from kidney stones.
Weak EvidenceEffective at: No established dose
Used in folk medicine to help the body pass kidney stones, though no clinical trials confirm this.
Weak EvidenceEffective at: No established dose
Absorption & Bioavailability
Unknown — no pharmacokinetic or absorption studies have been published based on available data.
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 hydrangin (a cyanogenic glycoside), which may be toxic in large doses — safety thresholds are not well established
- Widely used in supplements (1,000+ registered products) despite a near-total absence of published human research
- Should not be used as a substitute for medical evaluation of kidney stones, urinary infections, or kidney disease
- Potential drug interactions are unknown due to lack of research — use caution if taking prescription medications
Products Containing Hydrangea Root
See how Hydrangea Root is used in these analyzed products:
Frequently Asked Questions
What does Hydrangea Root do?
Traditional herb used for urinary and kidney support. No clinical trials confirm its effectiveness.
What is the effective dose of Hydrangea Root?
No established dose
Is Hydrangea Root safe?
No clinical trials exist to support any health claims — all uses are based on traditional or anecdotal evidence only
What doesn't Hydrangea Root do?
Not proven to dissolve or eliminate kidney stones.
Research Sources
- General knowledge
- Limited published research available
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