January 2026 in “JPRAS Open” In this pilot study, PDLLA scalp microinjections showed improvement in physician-rated Global Aesthetic Improvement Scale scores over 12-24 weeks for 90% of patients with non-scarring alopecia, with no serious adverse events reported, although findings remain preliminary due to methodological limitations.
November 2025 in “Advanced Science” In this study, researchers developed a polyphenol–amino acid nanozyme capable of controlled hydrogen peroxide delivery, which effectively activated hair follicles via oxidative stress in a mouse model, suggesting a potential non-pharmacological treatment for alopecia.
This study identified CXXC5 as a key mediator of hair loss induced by PGD2 and DHT via suppression of the Wnt/β-catenin pathway, with implications for potential therapeutic targets.
36 citations
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June 2014 in “PLOS ONE” This study found that men with persistent sexual side effects after using finasteride for androgenetic alopecia had higher androgen receptor expression in certain tissues compared to those who never used the drug.
26 citations
,
January 2007 in “Organogenesis” This review outlines the evolution of hair follicle engineering and its foundational discoveries, but reports no new experimental results.
9 citations
,
December 2022 in “Phytomedicine” This review discusses the pharmacology, toxicology, and clinical efficacy of flavonoids and saponins, highlighting the need for more data on their pharmacokinetics, interactions, and toxicities as most research is still in vitro.
2 citations
,
January 2023 in “Pharmaceuticals” This review discusses factors affecting hair health, types of alopecia, and the potential of phytochemicals in managing hair loss but reports no new clinical results; it highlights the need for further studies.
April 2025 in “Journal of Skin and Stem Cell” This review discusses the potential of polydeoxyribonucleotide (PDRN) for various dermatological treatments and highlights its significant effects on wound healing, anti-aging, acne scars, and hair loss, but emphasizes the need for further clinical studies.
January 2024 in “International Journal of Trichology” The authors concluded that the concept of postfinasteride syndrome remains contentious and may be more plausibly characterized as a psychiatric condition rather than a consistent medical syndrome.
May 2023 in “Journal of Clinical Medicine” This review article reports recent advancements in understanding, diagnosing, and treating various hair loss conditions, like androgenetic alopecia and alopecia areata, including their genetic factors and new therapeutic options, while also examining the impact of COVID-19 on hair loss.
9 citations
,
September 2009 in “PubMed” This case report presents the first evidence of significant antigen presenting cells around hair follicles in a patient with alopecia due to active systemic lupus erythematosus.
6 citations
,
January 2021 in “Annals of Dermatology” This study found that 650-nm red light treatment promoted hair follicle proliferation and delayed the transition from anagen to catagen in ex vivo hair follicles from androgenetic alopecia patients, with RNA-seq analysis suggesting involvement of biological processes like metabolism and leukocyte migration.
3 citations
,
August 2022 in “International Journal of Molecular Sciences” This review discusses the increased incidence of hair loss and telogen effluvium among COVID-19 patients and evaluates existing evidence for regenerative treatments like PRP and HFSCs, finding limited published data.
3 citations
,
September 2019 in “Clinical and experimental dermatology” This study found that basal cell carcinoma cells differentiate along hair follicle lineages and may be influenced by hair follicle cycle modulators for potential therapeutic targeting.
November 2025 in “PLoS ONE” This study found that synthetic RNA and DNA trigger significant increases in certain chemokines in human keratinocytes, predominantly via NF-κB activation, without evidence of alternative splicing, suggesting other regulatory pathways may be involved.
October 2023 in “Current Issues in Molecular Biology” In this study, researchers observed that the YH complex, made from Astragalus membranaceus and Cinnamomum cassia, promoted hair regrowth and increased hair shaft thickness in mice, potentially through increased growth factors and Wnt/β-catenin signaling, suggesting its use for treating various forms of hair loss.
28 citations
,
February 2016 in “F1000Research” This review introduces an integrated view of hair follicle behavior, highlighting a Yin Yang model of regulation and suggesting glycans as key elements in hair follicle growth control, without reporting new clinical findings.
24 citations
,
October 2017 in “Scientific reports” This study suggests that controlling light exposure can influence cashmere growth by triggering hair follicles to enter their active growth phase sooner, potentially involving the CSDC2 gene as a key regulator.
165 citations
,
February 2014 in “Phytotherapy Research” Myrtle has various health benefits and potential for medicine development.
8 citations
,
September 2010 in “Journal of Men's Health” This article reviews the pathophysiology, diagnosis, and treatment of androgenic alopecia but reports no new clinical findings.
September 2005 in “Journal of Investigative Dermatology” This study found that ferulic acid effectively stabilized vitamins C and E in a topical solution, doubling skin photoprotection against solar-simulated irradiation, which may help in preventing photoaging and skin cancer.
195 citations
,
May 2003 in “Obstetrics and gynecology (New York. 1953. Online)/Obstetrics and gynecology” This review discusses the diagnosis and treatment of hirsutism, emphasizing that a systematic evaluation can determine its cause, while combination therapy effectively manages the condition for most patients.
11 citations
,
February 2008 in “British journal of nursing” This article reviews idiopathic hirsutism, focusing on its definition, diagnosis, causes, and treatment options, without presenting new clinical findings.
11 citations
,
May 2003 in “Obstetrics and gynecology (New York. 1953. Online)/Obstetrics and gynecology” This review explores the evaluation and treatment of hirsutism, emphasizing a systematic approach to uncovering its causes and recommending combination therapies for effective management, but presents no new results.
34 citations
,
January 2004 in “Revista do Hospital das Clínicas” The authors reported that young men with infertility-related conditions experienced improved seminal quality after stopping finasteride, suggesting potential adverse effects on fertility during treatment.
123 citations
,
December 2015 in “Journal of Neuroendocrinology” This review discusses recent strategies targeting the neuroactive steroid biosynthetic pathway to enhance neurosteroidogenesis, highlighting their potential benefits for neurodegenerative and neuropsychiatric diseases, but reports no new clinical findings.
112 citations
,
October 2005 in “Mayo Clinic Proceedings” This article reviews the clinical, psychological, and management aspects of androgenetic alopecia in men, stating that it can be effectively managed by generalist clinicians with pharmacotherapy and surgical advancements.
82 citations
,
August 2017 in “Cell Reports” This study found that antibiotic-induced gut dysbiosis, particularly overgrowth of Lactobacillus murinus, can lead to hair loss in mice by depleting biotin.
74 citations
,
January 2006 in “The journal of investigative dermatology/Journal of investigative dermatology” This study identified novel compound heterozygous mutations in the DSG4 gene in a Japanese patient with congenital hypotrichosis, suggesting overlap between localized autosomal recessive hypotrichosis and monilethrix.
40 citations
,
October 2002 in “Endocrinology” In this study, synthetic vitamin D3 analogs stimulated hair growth and formation of normal hair follicles in nude mice, unlike the natural form 1,25 dihydroxyvitamin D3.