March 2026 in “Current Topics in Medicinal Chemistry” This review found that gut microbiota and exosomal microRNAs may collectively impact androgenetic alopecia progression by modulating immune responses and intercellular communication, suggesting new therapeutic possibilities; however, further research is needed to clarify these mechanisms.
April 2026 in “Preprints.org” The study found that enhancing quercetin bioavailability with EubioQuercetin may amplify its anti-aging effects in mice by modulating the gut microbiota and improving intestinal barrier function.
6 citations
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July 2025 in “Frontiers in Microbiology” This study observed that in patients with diabetic foot ulcers, an imbalance in skin microbiota, with increased pathogenic bacteria, contributes to infection and poor wound healing, and suggests that modulating microbiota composition might improve healing outcomes.
This study found that enhancing quercetin bioavailability with EubioQuercetin significantly improved external aging signs in mice and influenced gut microbiota and intestinal gene expression, suggesting potential modulation through the gut microbiota–intestinal barrier axis.
August 2025 in “Current Issues in Molecular Biology” This study demonstrated that Periplaneta americana extract significantly promoted hair regeneration in depilated mice by enhancing superoxide dismutase activity, upregulating vascular endothelial growth factor, modulating the FOXO/PI3K/AKT pathway, and restoring skin microbiome balance, suggesting its potential as a novel therapeutic candidate for alopecia.
12 citations
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May 2024 in “Indian Dermatology Online Journal” This study reviewed the role of probiotics in dermatological disorders and suggests they may help treat or prevent inflammatory skin conditions by modulating the microbiota, potentially reducing the need for steroids and antibiotics, though further research is needed to confirm efficacy and safety.
2 citations
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November 2025 in “International Journal of Molecular Sciences” This review highlights that the skin microbiota plays a crucial role in wound healing, with beneficial microorganisms aiding tissue repair and opportunistic pathogens hindering it, potentially guiding future microbiome-targeted therapies.
2 citations
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December 2023 in “International journal of molecular sciences” This review highlights how wound microbiota, particularly bacteria like Staphylococcus epidermidis and Staphylococcus aureus, significantly influences wound healing dynamics and suggests potential clinical applications through microbiota manipulation.
March 2026 in “Brazilian Journal of Microbiology” This study found that restoring the skin microbiome significantly improved hair growth and skin condition in androgenic alopecia model mice by modulating the immune-inflammatory balance, highlighting the potential of bacterial-based therapies for hair loss.
November 2025 in “Journal of Investigative Dermatology” CBD can help hair grow by supporting scalp health and reducing inflammation.
380 citations
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February 2023 in “Journal of Clinical Medicine” This review discusses various potential risk factors and possible therapeutic interventions for polycystic ovary syndrome, including the modulation of gut microbiota, but reports no new findings.
1 citations
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July 2025 in “Barrier Immunity” This review synthesizes existing research on the multilayered defense system of the skin, highlighting how physical, chemical, immune, and microbial barriers work together to maintain skin health, with disruptions in one often leading to broader barrier dysfunctions.
January 2026 in “Frontiers in Microbiology” This study suggests that Enterococcus faecium fermentation broth may have anti-aging effects in mice, mainly through modulating gut microbiota and enhancing immunity, with the key component NlpC/P60 potentially boosting host immune responses and increasing beneficial bacterial populations.
100 citations
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August 2022 in “Microbial Cell Factories” This review discusses the interactions between skin microbiota and human skin health, examining how imbalances may contribute to skin diseases, and reports no new clinical results.
February 2026 in “Probiotics and Antimicrobial Proteins” Modifying gut bacteria with pro- and postbiotics may help treat hair loss.
May 2025 in “Lasers in Medical Science” In this study, 13 androgenetic alopecia patients receiving Er: Yag laser treatment showed a significant increase in Staphylococcus spp. three days post-treatment, suggesting the laser may help modulate scalp microbiota balance.
March 2025 in “Medical Science of Ukraine (MSU)” This research explored the pathogenesis of alopecia areata, finding that disrupted immune tolerance and gut microbiota are significant contributors, and highlighted the need for innovative treatments that restore immune tolerance and modulate gut microbiota to improve patient outcomes.
December 2024 in “Food Bioscience” In a depilation mouse model, this study found that Limosilactobacillus fermentum MF10 promoted hair growth and increased follicle size by activating skin Wnt/β-catenin signaling and modulating gut microbiota, with effects comparable to the positive control finasteride.
June 2026 in “Frontiers in Physiology” In this study, a topical cream containing 3% lactic acid ferment lysate (VHProbi ® MixP) was found to significantly reduce sebum, porphyrin levels, and pore size, while increasing hydration and improving skin texture in participants with oily skin over a 60-day period.
January 2023 in “Discovery immunology” T cells and bacteria in the gut and skin help maintain health and protect against disease.
July 2026 in “Frontiers in Cellular and Infection Microbiology” This study found that patients with androgenetic alopecia had increased scalp microbial diversity and reduced Staphylococcus abundance, particularly in the frontal and vertex regions, suggesting this dysbiosis as a sensitive indicator of AGA.
May 2025 in “Frontiers in Pharmacology” This study investigated alopecia areata in a mouse model, finding that tofacitinib may inhibit disease progression by modulating linoleic acid metabolism and magnesium pathways, particularly affecting CD8+ T cell infiltration in hair follicles, offering insights for potential treatments.
11 citations
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November 2021 in “International journal of molecular sciences” In this study, germ-free male mice showed altered levels of certain neuroactive steroids in the brain and periphery, suggesting microbiota may influence neuroendocrine pathways that support brain functioning.
2 citations
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October 2025 in “ACS Infectious Diseases” This review highlights how disruptions in the host microbiome can worsen inflammation and infection-related pathology, while it remains unclear exactly how the microbiome helps resolve such inflammation, potentially impacting future treatments for infection-induced inflammatory diseases.
1 citations
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January 2023 in “Science Advances” This study found that bacterially induced metabolic changes in stem cells can enhance skin and hair follicle regeneration in both mice and humans, suggesting potential strategies for improving recovery after injury.
37 citations
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September 2018 in “Psychoneuroendocrinology” This study found that finasteride treatment in male rats led to enduring effects on depressive-like behavior, hippocampal neurogenesis and neuroinflammation, and gut microbiota composition after withdrawal.
5 citations
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April 2023 in “BMC Microbiology” This study found that using a shampoo containing heat-killed probiotics, GMNL-653, led to decreased dandruff and sebum production and increased hair growth in human participants, with observed microbiota shifts including changes in M. globosa and M. restricta abundance.
In this preclinical study, PA-011 derived from Periplaneta americana showed significant hair regrowth effects in androgenetic alopecia mouse models by inhibiting inflammation and oxidative stress, activating hair follicle stem cell proliferation, and normalizing skin microbiota, suggesting promise as an AGA treatment.
3 citations
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September 2025 in “Frontiers in Microbiology” This review article proposes a possible skin-gut-fibrosis axis, suggesting that gut microbial metabolites may influence the development of keloids and hypertrophic scars by affecting immune responses and fibrotic signaling pathways, although direct evidence in skin fibrosis remains limited.
1 citations
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January 2023 in “Metabolites” This review discusses the relationship between gut microbiota and polycystic ovarian syndrome (PCOS), including its potential mechanisms and the role of alterations in microbiome composition on PCOS pathophysiology.