**Evidence-Based Evaluation of Traditional Chinese Medicine for Treating Hair Loss**
Hair loss is a common problem affecting many people, ranging from androgenetic alopecia to alopecia areata, with complex etiologies and diverse treatment modalities. In recent years, the application of traditional Chinese medicine (TCM) in treating hair loss has garnered attention, but the public often holds misconceptions about its true efficacy—some regard it as a “miracle folk remedy,” while others dismiss it entirely. This article will objectively review existing research evidence based on the principles of evidence-based medicine (EBM) to help readers approach this topic rationally.
**I. Theoretical Basis and Common Methods of TCM for Treating Hair Loss**
According to TCM theory, hair loss is often associated with “kidney deficiency,” “blood heat,” “blood deficiency,” or “dampness-heat,” and treatment emphasizes syndrome differentiation and individualized therapy. Common methods include: oral administration of Chinese herbal formulas (such as Qibao Meiran Dan and Er Zhi Wan, which contain *Polygonum multiflorum*, *Ligustrum lucidum*, and *Cuscuta chinensis*), topical tinctures (e.g., alcohol-based preparations infused with *Platycladus orientalis* leaves or ginger extract), and physical therapies such as acupuncture and plum blossom needle tapping. These methods are extensively documented in traditional medical texts, but their efficacy requires validation through modern evidence-based approaches.
**II. Current Evidence-Based Findings: Conclusions from Systematic Reviews**
As of 2025, several systematic reviews and meta-analyses have evaluated the efficacy of TCM for treating hair loss. For example, a 2023 review published in the *Cochrane Database of Systematic Reviews* included 12 randomized controlled trials (RCTs) involving 698 patients with androgenetic alopecia. The results showed that certain Chinese herbal compound formulas (e.g., preparations containing *Polygonum multiflorum* and *Angelica sinensis*) demonstrated statistical differences in improving hair loss scores and promoting hair growth compared with placebo. However, most studies had design flaws—small sample sizes, lack of blinding, short follow-up periods (typically only 3–6 months), and no standardized hair loss grading system. Therefore, the review authors concluded that the overall quality of evidence was low and did not support definitive conclusions.
For alopecia areata (commonly known as “patchy hair loss”), a 2021 meta-analysis published in the *Journal of Alternative and Complementary Medicine* included 16 RCTs and found that the overall response rate of oral Chinese herbal medicine combined with topical treatments (e.g., plum blossom needle tapping) was higher than that of Western medicine alone (e.g., glucocorticoids). However, most of the included studies originated from China, posing a high risk of publication bias, and reports of serious adverse events were incomplete. Of greater concern, some Chinese herbal medicines (e.g., formulas containing *Polygonum multiflorum*) may cause liver injury—China’s National Medical Products Administration issued a warning as early as 2014 regarding the hepatotoxicity risk of *Polygonum multiflorum* and its preparations, emphasizing that they must be used under medical supervision.
**III. Safety and Controversies of Typical Chinese Herbal Medicines**
*Polygonum multiflorum* is one of the most commonly used Chinese herbs for treating hair loss, but its hepatotoxicity has been confirmed. Evidence-based medicine shows that long-term use, excessive doses, or co-administration with hepatotoxic drugs can lead to elevated transaminase levels and even acute liver failure. In addition, topical ginger application is a folk remedy, but a 2023 *in vitro* study suggested that 6-gingerol in ginger may inhibit hair follicle growth rather than promote it—indicating that traditional experience may be overturned and should not be used blindly.
Regarding acupuncture and plum blossom needle therapy for hair loss, existing RCT evidence is even weaker. A 2019 systematic review of 8 studies noted that plum blossom needle tapping combined with topical herbal application may have some effect in treating alopecia areata, but due to the lack of sham acupuncture controls, placebo effects could not be ruled out. Most studies did not report the natural recovery rate during the treatment period (alopecia areata has a relatively high rate of spontaneous remission), leading to potential overestimation of efficacy.
**IV. Limitations of Evidence-Based Evaluation and Future Directions**
Current evidence-based research on TCM for treating hair loss faces three major bottlenecks: a lack of highly standardized, multicenter, large-sample RCTs; non-uniform outcome measures (e.g., relying solely on subjective “response rates” without objective quantitative indicators such as hair density); and insufficient long-term safety monitoring. The internationally recognized gold standards for treating hair loss—FDA-approved finasteride and minoxidil—have clear efficacy rates (approximately 60–80%), but they also have drawbacks such as sexual side effects and relapse upon discontinuation. As an alternative or adjunctive approach, the potential advantage of TCM may lie in “individualized regulation” rather than “universal hair regrowth,” but this advantage has yet to be confirmed by high-quality evidence.
**V. Practical Recommendations for the Public**
Currently, no TCM therapy is recommended as first-line treatment for hair loss by mainstream international medical guidelines (e.g., the American Academy of Dermatology guidelines). If considering TCM, the following principles should be observed: First, obtain treatment based on syndrome differentiation from a licensed TCM practitioner, and avoid self-formulating “hair growth recipes.” Second, proactively inform your Western medicine doctor to prevent conflicts with prescription medications. Third, regularly monitor liver function (especially when using drugs containing *Polygonum multiflorum* or *Psoralea corylifolia*). Fourth, be wary of folk remedies claiming a “90% response rate”—such data are typically derived from non-randomized or unpublished case reports.
**Conclusion**
The evidence-based evidence for TCM in treating hair loss is currently at a “preliminary but weak” stage. Some studies suggest possible efficacy, but methodological limitations preclude support for widespread clinical application. Safety risks, particularly liver injury, must be regarded with high vigilance. Future research based on rigorously designed RCTs, standardized assessment tools, and long-term follow-up is needed to make credible judgments about the true value of TCM in hair loss treatment. Given the insufficient evidence, a rational approach is: neither reject nor blindly follow, prioritize validated modern medical options, and cautiously explore the adjunctive role of TCM.
*(This article is for reference only and does not constitute medical advice. For hair loss, please consult a licensed dermatologist or TCM physician.)*