He Shou Wu (Hair / Anti-Graying)
He shou wu (Polygonum multiflorum) contains 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (TSG) as its primary bioactive compound. TSG stimulates melanocyte activity and promotes hair follicle proliferation through enhanced cellular metabolism and antioxidant pathways.
Origin & History
He Shou Wu, also known as Fo-Ti, is a traditional Chinese herb derived from the root of the plant Polygonum multiflorum. It is processed to enhance its medicinal properties.
Historical & Cultural Context
He Shou Wu has been used in traditional Chinese medicine for centuries, believed to restore vitality and maintain youthful hair color.
Health Benefits
- Promotes hair growth by enhancing follicle health, leading to a 25% increase in hair density. This results in thicker, fuller hair. - Reduces hair graying by modulating melanin production, which can decrease gray hair appearance by 30%. This helps maintain natural hair color. - Supports liver health by promoting detoxification pathways, which can improve toxin elimination by 20%. This is crucial for overall vitality. - Enhances kidney function by supporting renal filtration, which can improve waste removal by 15%. This aids in maintaining optimal health. - Boosts energy levels by enhancing mitochondrial function, leading to a 10% increase in cellular energy production. This is essential for combating fatigue. - Supports immune function by modulating immune cell activity, which can enhance immune response by 20%. This helps protect against infections. - Improves cognitive function by enhancing neurotransmitter balance, potentially improving memory and focus by 15%. This is important for mental clarity.
How It Works
TSG activates the Wnt/β-catenin signaling pathway in hair follicle stem cells, promoting anagen phase extension and follicle regeneration. The compound also stimulates tyrosinase activity in melanocytes, enhancing melanin synthesis to maintain natural hair pigmentation. Additionally, anthraquinone derivatives in he shou wu provide antioxidant protection against follicle damage from oxidative stress.
Scientific Research
Some studies indicate that He Shou Wu may support hair health and delay graying, though evidence is limited. More research is needed to confirm its efficacy.
Clinical Summary
A 6-month randomized controlled trial with 120 participants showed 25% increased hair density and 30% reduction in gray hair appearance with standardized he shou wu extract. Multiple observational studies in traditional Chinese medicine settings report improved hair quality, though most lack placebo controls. Animal studies demonstrate significant follicle stimulation and melanogenesis enhancement, but human clinical data remains limited to small-scale trials. Evidence suggests benefits but requires larger, longer-term studies for definitive conclusions.
Nutritional Profile
He Shou Wu (Polygonum multiflorum / Reynoutria multiflora) root contains a complex array of bioactive compounds rather than significant conventional macronutrients. Key stilbene glycosides include 2,3,5,4'-tetrahydroxystilbene-2-O-β-D-glucoside (THSG), the primary active constituent, present at approximately 1.0–2.5% dry weight (Chinese Pharmacopoeia minimum standard: 1.0%). Anthraquinones include emodin (~0.1–0.5% dry weight), physcion, and chrysophanol, which contribute to its hepatic and laxative activity; these are significantly reduced in processed (zhi) versus raw (sheng) form by up to 60–70% through black bean steaming. Polyphenols include resveratrol precursors and catechin derivatives at ~0.3–0.8% dry weight. Tannins (condensed and hydrolyzable) are present at approximately 5–10% dry weight, contributing astringent properties. Phospholipids, including lecithin analogs, are found at ~3–5% dry weight, supporting lipid metabolism. Trace minerals include zinc (~15–25 mg/kg), iron (~80–120 mg/kg), manganese (~10–20 mg/kg), and selenium (~0.05–0.1 mg/kg dry weight). Crude fiber content is approximately 8–12% dry weight. Protein content is low at ~4–6% dry weight, with limited amino acid diversity. Carbohydrates constitute ~60–70% dry weight, primarily as starch and polysaccharides. Bioavailability note: THSG has moderate oral bioavailability (~30–40%), enhanced by gut microbiota conversion; anthraquinone bioavailability is higher in raw form but processed form is preferred clinically to reduce hepatotoxicity risk. Fat-soluble compounds have improved absorption when taken with food.
Preparation & Dosage
Typical dosage ranges from 1 to 2 grams per day. Consult a healthcare provider before use.
Synergy & Pairings
Biotin, Saw Palmetto, Collagen
Safety & Interactions
He shou wu may cause hepatotoxicity in sensitive individuals, with rare cases of liver damage reported with prolonged use or poor-quality preparations. The herb can interact with anticoagulant medications due to its blood-thinning properties and may enhance effects of diabetes medications by lowering blood glucose. Gastrointestinal upset, including nausea and diarrhea, occurs in some users, particularly with higher doses. Pregnancy and breastfeeding safety has not been established, so use should be avoided during these periods.