Is *Polygonum multiflorum* extract truly effective for preventing hair graying?
He Shou Wu extract is effective in promoting hair growth and preventing graying, but its effectiveness depends on strict conditions.
Release time：
2026-01-27
Source：
一、The core components and mechanisms of action of *Polygonum multiflorum* extract.
1. Core active ingredients
- Stilbene glycosides（Such as resveratrol glycoside）：The characteristic components of *Polygonum multiflorum*, which possess powerful antioxidant and anti-inflammatory properties, can help protect hair follicle cells from oxidative stress damage.
- Anthraquinone derivatives（Such as emodin）：It has a mild stimulating and regulating effect.
- Phospholipids, flavonoids, and various trace elements：Provides nutritional support for hair growth.
2. Possible mechanisms of action for promoting hair darkening.
- Antioxidant and protective effects on hair follicle melanocytes：Hair graying is closely related to the decline and death of melanocytes in the hair follicles. The abundant stilbene glycosides and other components in Polygonum multiflorum can effectively scavenge free radicals and reduce oxidative stress damage to melanocytes, potentially protecting and maintaining their function.
- Improve scalp microcirculation and nutrient supply：Its traditional function of "nourishing and invigorating the blood" can be understood in modern terms as potentially helping to improve capillary circulation in the scalp, delivering more oxygen and nutrients to the hair follicles, and creating a better environment for hair growth.
- Regulates endocrine and immune systems：Some animal studies suggest that *Polygonum multiflorum* extract may have some effect on regulating hormone levels related to hair growth. Furthermore, its balancing effect on the immune system may indirectly help reduce hair loss or graying caused by autoimmune factors.
Polygonum multiflorum extract shows promising potential in promoting melanin production and protecting hair follicle cells. However, high-quality, large-scale clinical research data directly demonstrating its effectiveness in darkening human hair is still relatively limited. The scientific community generally considers it a potentially effective auxiliary ingredient for hair care, rather than an instant "dye."
二、 Beyond Hair Darkening: The Multiple Health Benefits of Polygonum multiflorum Extract
Focusing solely on its use for "darkening hair" may underestimate the value of this ancient plant. Modern research has revealed a broader range of health applications for *Polygonum multiflorum* extract.：
- Neuroprotection and anti-aging：Stilbene glycosides have shown potential in protecting neurons, improving memory, and combating brain aging.
- Cardiovascular health：Its antioxidant and anti-inflammatory properties help protect the health of the vascular endothelium.
- Immunomodulation：It has a bidirectional regulatory effect on the body's immune function.
Polygonum multiflorum extract embodies centuries of wisdom and possesses potential that has been preliminarily validated by modern science, but it is not a miracle cure.Polygonum multiflorum extract offers us a new approach to hair care based on holistic health. Guided by science, with rational choices and persistent effort, it may become a gentle yet powerful natural force in protecting your hair.
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