August 2024 in “Nutrients” This study found that a combination of probiotic strains of Lactiplantibacillus administered over 16 weeks reduced the number and density of telogen hairs in individuals with androgenic alopecia, while increasing the abundance of Lactobacillus in their gut microbiota.
August 2026 in “Cosmetics” This review assessed dermo-cosmetic treatments using prebiotics, probiotics, synbiotics, and other biotics for acne and scalp disorders, finding potential benefits, especially with multi-strain or synbiotic formulations, although challenges like formulation stability and the need for larger trials persist.
November 2025 in “Research Review” This review of studies published after 2020 found that probiotics may significantly reduce acne lesions and improve skin health in individuals with acne vulgaris, though further high-quality research is needed for confirmation and treatment optimization.
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August 2019 in “The World Journal of Men's Health” This study found that administering a kimchi and cheonggukjang probiotic product promoted hair growth and increased hair thickness in individuals with patterned hair loss without causing adverse effects.
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July 2022 in “Functional foods in health and disease/Journal of functional foods in health & disease” This study found that oral probiotic supplementation over 12 weeks may improve hair growth, skin condition, metabolic health, and stress responses in Chinese adults with hair loss and a high risk of metabolic syndrome.