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He Shou Wu supplement
Adaptogenic Herb

He Shou Wu: Benefits, Dosage, Forms & Research

Adaptogenic Herb

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

TL;DR — Quick Answer

He shou wu is a TCM longevity tonic with preliminary evidence for anti-aging, cholesterol reduction, and neuroprotection. Use only processed (zhi) form due to liver safety concerns with raw root. Standard dose is 500-1000mg processed root extract daily. Professional guidance recommended.

Key Facts

What it is
A TCM longevity root (Polygonum multiflorum) used for anti-aging, hair health, and vitality
Primary benefits
  • Traditional anti-aging and longevity tonic
  • Antioxidant and neuroprotective
  • May improve lipid profiles
  • Hair health (traditional claim)
  • Supports liver and kidney yin (TCM)
Typical dosage
500-1000mg processed (zhi) root extract daily
Evidence level
Preliminary
Safety profile
Caution Needed

What the Research Says

He shou wu has extensive traditional use but limited modern clinical evidence and notable safety concerns. The bioactive compound TSG has shown promising antioxidant and neuroprotective effects in preclinical studies (Sun et al., 2016 review). However, the herb has been associated with significant hepatotoxicity. Lei et al. (2015) documented over 450 cases of Polygonum multiflorum-induced liver injury in China, leading to regulatory warnings. The processed (zhi) form has lower anthraquinone content and reduced hepatotoxicity risk compared to raw root, but liver monitoring is still recommended. This herb should be used under professional guidance.

Benefits of He Shou Wu

  • Antioxidant and anti-aging — TSG (the primary stilbene glycoside) demonstrates potent free radical scavenging and has extended lifespan in C. elegans models (Li et al., 2015)
  • Neuroprotection — preclinical studies show TSG protects against Alzheimer's-related amyloid-beta toxicity and promotes neurogenesis (Sun et al., 2016 review)
  • Lipid management — a small clinical trial found processed he shou wu reduced total cholesterol and LDL in hyperlipidemic patients (Chen et al., 2013)
  • Hair health — traditional reputation for restoring hair pigmentation; limited modern evidence but melanocyte-stimulating activity demonstrated in vitro
  • Immune modulation — polysaccharide fraction enhances immune cell activity in preclinical models
Did you know?

He shou wu has extensive traditional use but limited modern clinical evidence and notable safety concerns.

Forms of He Shou Wu

FormBioavailabilityBest For
Processed (Zhi) Root ExtractModerateOnly recommended form — processing reduces anthraquinones (hepatotoxic compounds)
Processed Root PowderLow-ModerateTraditional TCM decoctions — always use processed, never raw

Dosage Recommendations

General recommendation: 500-1000mg processed (zhi) root extract daily

Timing: With meals; limit use to 3-month cycles with liver function monitoring • Take with food for best absorption.

Dosage by Condition

ConditionRecommended DoseEvidence
General tonic/longevity500-1000mg processed extract dailyPreliminary
Cholesterol support500-1000mg dailyPreliminary
Hair health500mg daily (traditional)Insufficient

Upper limit: 1000mg processed extract daily (err on lower side due to liver concerns)

Side Effects and Safety

Safety profile: Caution Needed

Potential Side Effects

  • Hepatotoxicity — multiple case reports of liver injury, some severe (Lei et al., 2015 review identified 450+ cases in China)
  • GI discomfort (diarrhea, nausea, abdominal pain)
  • Skin rash
  • Numbness in extremities (rare)
  • Raw form has much higher risk than processed — NEVER use raw he shou wu orally as a tonic

Drug & Supplement Interactions

  • May cause liver injury — avoid combining with other hepatotoxic drugs or supplements
  • May interact with statins and other cholesterol-lowering medications
  • May affect CYP enzyme metabolism
  • May enhance effects of laxatives (raw form is a strong laxative)
  • Avoid with pre-existing liver disease
Check He Shou Wu interactions with other supplements →
BenefitsDosage GuideSide EffectsTypes & FormsResearchFAQ

Related Conditions

Longevity & Healthy Aging

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Frequently Asked Questions

Can he shou wu really restore gray hair?

He shou wu is legendary in TCM for restoring hair color, but clinical evidence is extremely limited. Some in vitro studies show melanocyte-stimulating activity, which could theoretically support hair pigmentation. However, no rigorous clinical trials have confirmed this effect in humans. Most reports are anecdotal or from traditional case histories. Do not rely on he shou wu for hair color restoration.

Is he shou wu safe for the liver?

He shou wu has a documented risk of hepatotoxicity, particularly the raw (sheng) form. Over 450 cases of liver injury have been reported in China. The processed (zhi) form is safer but not risk-free. If you choose to use he shou wu, only use the processed form, limit use to 3-month cycles, and get liver function tests (ALT/AST) before starting and periodically during use. Stop immediately if you experience fatigue, dark urine, or abdominal pain.

What is the difference between raw and processed he shou wu?

This distinction is critical. Raw (sheng) he shou wu is primarily a laxative with high anthraquinone content and significant liver toxicity risk — it should NOT be used as a tonic. Processed (zhi) he shou wu is steamed with black bean juice, which reduces anthraquinone levels and transforms the herb into its tonic form. Always verify that your supplement uses the processed form.

References

  1. (). Liver damage associated with Polygonum multiflorum Thunb.: a systematic review of case reports and case series. Evidence-Based Complementary and Alternative Medicine. DOI
  2. (). Promotion of neuroprotective effects of Polygonum multiflorum: a review of pharmacological activities and mechanisms. Chinese Journal of Integrative Medicine. DOI