December 2021 in “Revista da Sociedade Portuguesa de Dermatologia e Venereologia” This review discusses the impact of dysbiosis on scalp diseases like seborrheic dermatitis and alopecia areata, reporting no new results; the authors suggest the microbiome could offer therapeutic options.
October 2025 in “Scientia Generalis” In this narrative review, dysbiosis was found to potentially influence androgen metabolism and immune response, suggesting that gut microbiota balance may play a role in the prevention and treatment of androgenetic and areata alopecia.
January 2025 in “Universidad de Córdoba Insitutional Repository (Universidad de Córdoba)” In this study, researchers observed that individuals with alopecia areata exhibited significant changes in scalp microbiota diversity and composition, which were linked to disease severity and inflammation markers, though it remains unclear if these microbial shifts are a cause or a result of hair loss.