TLDR Bacterial communities on scalp hair are unique to each person but consistent across different scalp sites.
This study examined the bacterial community structure on scalp hair shafts from 5 different sites on the scalp of 12 individuals. Significant differences in bacterial diversity and abundance were observed between individuals, but not between different scalp sites. Principal coordinate analysis showed that bacterial communities clustered by individual rather than by scalp site. Weighted UniFrac analysis confirmed that individual differences were statistically significant, while differences between scalp sites were not. These findings suggest that the bacterial community structure on scalp hair shafts is consistent within individuals, regardless of the specific scalp site sampled.
7 citations,
September 2020 in “Bioscience Biotechnology and Biochemistry” The scalp has more diverse bacteria, while hair has more bacteria and unique types.
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October 2018 in “Frontiers in cellular and infection microbiology” Certain bacteria and fungi are linked to healthy scalps and dandruff, suggesting that the scalp's microbial balance affects its health.
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January 2018 in “Scientific reports” Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.
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January 2017 in “Skin appendage disorders” Biotin supplements may improve hair and nail growth in people with certain deficiencies or conditions, but there's not enough evidence to recommend it for healthy individuals.
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May 2019 in “PLOS ONE” Hair loss patients have different microbes in hair follicles, possibly affecting hair loss.
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September 2020 in “Bioscience Biotechnology and Biochemistry” The scalp has more diverse bacteria, while hair has more bacteria and unique types.
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July 2022 in “PLOS ONE” The study concluded that people with Lichen Planopilaris have a more diverse scalp bacteria and different metabolic pathways compared to healthy individuals.
1 citations,
July 2023 in “Scientific Reports” Wearing a hijab changes the common bacteria and fungi on the scalp, possibly affecting skin health.
October 2020 in “Veterinary Dermatology” New treatments and diagnostic methods for various animal skin conditions showed promising results.
