Hair thinning can feel deeply personal, yet it is far more common than many realise. Female pattern hair loss, also known as androgenic alopecia, affects millions of women worldwide, often beginning gradually and progressing over time. While treatments such as minoxidil and prescription medications remain the gold standard, new research is prompting renewed interest in alternative therapies.
A recent scientific review has highlighted Polygonum multiflorum, a herb long used in Traditional Chinese Medicine, as a potential aid in slowing hair loss and supporting regrowth. While experts stress that more research is needed, the findings are enough to spark cautious optimism.
What is Polygonum multiflorum?
Polygonum multiflorum, also known as He Shou Wu, is a medicinal root traditionally used to promote hair health, vitality and longevity. In Chinese medicine, it has historically been linked to darker, fuller hair and improved scalp health.
The new review analysed laboratory studies and limited clinical data, focusing on how the herb interacts with hair follicles at a cellular level. Researchers observed that compounds in Polygonum multiflorum may help protect follicle cells, reduce inflammation and support the hair growth cycle.
How the herb may support hair regrowth
According to the research, Polygonum multiflorum appears to act through several mechanisms associated with hair loss. One of the most notable is its potential influence on dihydrotestosterone (DHT), a hormone linked to follicle shrinkage in androgenic alopecia.
Laboratory findings suggest the herb may:
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Help limit DHT activity around hair follicles
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Protect follicle cells from premature cell death
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Support the active growth phase of the hair cycle
Some studies also indicate improved blood flow to the scalp, which may enhance nutrient delivery to follicles, although this effect requires further confirmation in human trials.
What dermatologists say about the findings
Dermatologists describe the research as intriguing but emphasise that it is still early. Much of the evidence comes from laboratory models rather than large-scale human studies, making it difficult to draw firm conclusions about effectiveness or safety.
Experts also caution that hair growth is influenced by multiple factors, including genetics, hormones, nutrition and overall health. While Polygonum multiflorum may support some of these pathways, it is unlikely to be a standalone solution.
Topical use versus oral supplements
One of the biggest concerns surrounding Polygonum multiflorum relates to how it is used. Traditionally, it has been prepared as a tonic, tea or powder, but oral use has raised safety questions.
Medical experts note that ingestible forms have been linked to liver toxicity in some cases, particularly when taken in high doses or for extended periods. Topical formulations, on the other hand, appear to carry a lower risk and are increasingly being explored in scalp treatments and cosmetic products.
Because supplements are not tightly regulated, concentrations can vary significantly between products, making dosage difficult to control.
Should you try it if you are experiencing hair loss?
If you are dealing with thinning hair, curiosity about emerging treatments is understandable. However, dermatologists strongly advise against self-prescribing herbal remedies, particularly oral ones, without professional guidance.
Clinically proven treatments such as topical minoxidil remain the most reliable first step. A dermatologist can help identify the underlying cause of hair loss and determine whether complementary approaches may be appropriate.
Polygonum multiflorum is not a miracle cure, but it represents an interesting area of ongoing research. Its long history in Traditional Chinese Medicine, combined with emerging laboratory evidence, suggests potential benefits for hair follicle health. That said, safety concerns and limited human data mean caution is essential.
For now, experts agree that anyone experiencing hair loss should prioritise evidence-based treatments and seek medical advice before exploring herbal alternatives.
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