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.
August 2025 in “Frontiers in Microbiology” This study found that microneedling treatment improved hair regeneration in an animal model of alopecia areata and positively influenced the gut microbiome by restoring microbial diversity and altering short-chain fatty acid levels.
4 citations
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December 2023 in “Clinical Cosmetic and Investigational Dermatology” This study found that in people with leprosy sequelae, ulcers on the lower limbs exhibited decreased microbial diversity and reduced abundance of specific bacteria compared to normal skin, with skin metabolites closely linked to these microbial changes.
April 2018 in “Journal of Investigative Dermatology” This study found that sensitive scalp is characterized by increased pH levels, redness, altered sebum composition, and a disrupted microbiome, suggesting these features could inform treatment approaches.
9 citations
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February 2022 in “Genes” This study found a significant association between gut microbiome composition and PCOS in Indian women, relating specific bacterial genera to reproductive health and metabolic indicators.