March 2026 in “International Journal of Dermatology” In this study, researchers observed that patients with androgenetic alopecia show differences in scalp microbial communities compared to the general population, including an increase in Cutibacterium acnes, particularly in males, which may interact with lipid and immune pathways to contribute to hair follicle miniaturization.
January 2026 in “Journal of Ethnopharmacology” Cedrol promotes hair growth better than baricitinib by regulating immune cells.
1 citations
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January 2026 in “Journal of Pharmaceutical Analysis” This review highlights the potential of natural compounds like terpenoids, flavonoids, and polyphenols in promoting hair regrowth for those with alopecia areata by activating growth pathways and modulating immune responses, but calls for further research to confirm their therapeutic utility.
This study discovered that androgenetic alopecia disrupts the scalp microbiome balance across the whole scalp, not just areas with hair loss, and introduced a microbial index for early detection and severity prediction.
May 2025 in “Journal of the American Academy of Dermatology” This review highlights the available and investigational anti-androgen treatments for female pattern hair loss in the US, noting their limitations and the potential for fewer systemic side effects with topical options compared to oral medications.
March 2025 in “JAAD reviews.” This study suggests bicalutamide may be effective in reducing hair loss severity in female pattern hair loss, particularly when other antiandrogen therapies are less effective due to hyperandrogenic conditions.
March 2025 in “BioNanoScience” The new minoxidil hydrogel improves delivery and is safe for treating hair loss.
January 2025 in “Anais Brasileiros de Dermatologia” This review examines male androgenetic alopecia and reports no new clinical results, offering insights to aid dermatologists in making informed therapeutic decisions.
November 2024 in “Journal of Investigative Dermatology” Changes in scalp bacteria are linked to female hair loss, suggesting new treatment options.
August 2024 in “Stem Cell Research & Therapy” This review discusses current and emerging therapies for androgenetic alopecia, emphasizing regenerative treatments and nanotechnology advancements, but it reports no new clinical results.
August 2024 in “Bioorganic Chemistry” This study found that oral administration of cedrol, a component of ginger, improved hair regeneration and reduced hair follicle damage in cyclophosphamide-induced alopecia areata in mice more effectively than external administration, by enhancing cytokine expression and modulating key signaling pathways.
May 2024 in “Chemical engineering journal” This study reports that a new minoxidil and epigallocatechin gallate co-loaded ionic liquids system showed superior efficacy in promoting hair regrowth in a mouse model of androgenic alopecia by activating hair follicle stem cells and improving microenvironment conditions, compared to existing minoxidil products.
February 2023 in “Medicine in novel technology and devices” This study found that microneedle delivery of Polygonum multiflorum extract led to earlier pigmentation and hair regrowth in mice with androgenetic alopecia.
February 2023 in “Frontiers in Pharmacology” This study found that the water extract of Cacumen Platycladi promotes hair growth and follicle development in mice, possibly by influencing dermal papilla cells through the Akt/GSK3β/β-Catenin signaling pathway.
January 2023 in “Dermatologic Therapy” This study demonstrates a significant correlation between anxiety, depression, and reduced quality of life in individuals with androgenetic alopecia.
December 2022 in “Frontiers in Microbiology” This study found that individuals with androgenetic alopecia had higher scalp microbiome diversity and more complex scalp-gut microbiome networks than those without, suggesting a link between skin-gut microorganisms and hair loss development.
5 citations
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April 2022 in “Journal of Ethnopharmacology” This review discusses the therapeutic mechanisms of Traditional Chinese Medicine in treating alopecia but reports no new clinical results; the authors emphasize the need for more guided clinical application and research on herbal combinations.
13 citations
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April 2022 in “BMC Genomics” This study found that dandruff-afflicted individuals had a less integrated microbial network on the scalp and hair surface compared to healthy individuals, with more positive interactions and unstable connections.
3 citations
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November 2021 in “Journal of The American Academy of Dermatology” This article discusses hormonal mechanisms underlying androgenetic alopecia but does not report any new findings; it reviews the roles of dihydrotestosterone and available FDA-approved treatments.
4 citations
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October 2021 in “Microorganisms” This study suggests that both the sebum composition and microbial imbalance on the scalp may play a role in the development of androgenetic alopecia among Japanese males.
3 citations
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April 2020 in “Medicine” This study is set to explore acupuncture's effects on seborrheic alopecia through a randomized controlled trial, aiming to assess its clinical effectiveness and safety.
9 citations
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June 2019 in “Mycopathologia” This study found that the presence of Malassezia fungi in the scalp's hairy roots was more pronounced in individuals with androgenetic alopecia than in healthy controls, suggesting a potential link to the condition.
26 citations
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May 2019 in “PLOS ONE” This study observed that hair follicles in hair loss patients had increased levels of Propionibacterium acnes, potentially linked to elevated immune response gene expression in miniaturized hair follicles.
13 citations
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March 2019 in “Journal of ethnopharmacology” This study found that Cacumen Platycladi volatile oil promotes dermal papilla cell proliferation and enhances hair growth in mice, outperforming minoxidil and showing no obvious cytotoxic effects.
65 citations
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October 2018 in “Frontiers in cellular and infection microbiology” This study observed that dandruff in Indian women is associated with a distinct scalp microbiome, including specific bacterial and unknown Malassezia species, with implications for nutrient homeostasis and cell-host adhesion pathways.
13 citations
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September 2018 in “Dermatologic Therapy” This study reports that while topical minoxidil treatment showed a response in less than 40% of men after 24 weeks, oral finasteride stopped hair loss in over 80% of patients at 12 months; perceived sexual side effects of the latter may limit its use.
25 citations
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November 2015 in “Journal of Ethnopharmacology” This study found that Cacumen platycladi extract significantly promoted hair growth and reduced dihydrotestosterone levels by inhibiting 5α-reductase activity in an androgen-sensitive mouse model.
51 citations
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July 2013 in “Bioorganic & Medicinal Chemistry Letters” This study found that compound 2 from Polygonum multiflorum significantly increased dermal papilla cell proliferation and hair-fiber length, suggesting potential as a therapeutic agent for alopecia.
91 citations
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April 2011 in “Journal of Ethnopharmacology” This study found that Polygonum multiflorum extract may promote hair growth by inducing the anagen phase in the resting hair follicles of mice.
11 citations
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May 2009 in “Medical Hypotheses” This paper proposes a theory explaining how the normal anabolic effects of androgens lead to structural changes and hair follicle miniaturization, contributing to androgenic alopecia.
76 citations
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January 2004 in “Journal of Investigative Dermatology” 
47 citations
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April 2003 in “Journal of dermatological science” This study showed that Thujae occidentalis semen extract inhibited 5alpha-reductase type 2 in laboratory tests and reduced androgen-related hair loss in animal models, suggesting potential use for male pattern baldness.
54 citations
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August 1981 in “British Journal of Dermatology” This study found that patients with alopecia areata had significantly lower T cell numbers and reduced lymphocyte responses compared to healthy controls, correlated with hair loss severity and presence of antithyroid antibodies.
