Benefits of He Shou Wu

Evidence-Based Benefits

• 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

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.

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