September 2023 in “Bioscience, biotechnology, and biochemistry” Bacterial communities on scalp hair are unique to each person but consistent across different scalp sites.
65 citations
,
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.
17 citations
,
September 2020 in “Journal of Endocrinological Investigation” Post-finasteride patients show changes in gut bacteria, possibly causing various symptoms.
September 2023 in “Clinical, cosmetic and investigational dermatology” SLFC can improve scalp health and reduce sensitive scalp symptoms.
82 citations
,
August 2017 in “Cell Reports” An imbalanced gut and lack of biotin can cause hair loss in mice.
March 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” A specific immune response helps control mite populations on the skin, maintaining healthy hair follicles.
37 citations
,
September 2018 in “Psychoneuroendocrinology” Finasteride treatment in male rats causes long-lasting effects on depression-like behavior, brain cell growth, inflammation, and gut bacteria composition.
December 2024 in “Microorganisms” Microbiota changes in deer antler velvet aid in wound healing and tissue regeneration.
September 2025 in “Medicine & Science in Sports & Exercise” Gender-affirming hormone therapy and surgery affect gut bacteria differently.
June 2024 in “Skin Research and Technology” Red fluorescence in AGA scalps is linked to different microbes.
November 2023 in “Frontiers in Neuroendocrinology” Some people experience lasting sexual, psychological, and sleep problems after using finasteride or SSRI antidepressants, possibly due to similar underlying causes.
February 2026 in “Animals” Methionine supplementation in low-protein diets improves growth, fur quality, and gut health in blue foxes.
August 2024 in “Pharmaceuticals” Oral sturgeon oil promotes hair growth and improves gut health.
7 citations
,
September 2020 in “Bioscience Biotechnology and Biochemistry” The scalp has more diverse bacteria, while hair has more bacteria and unique types.
18 citations
,
August 2019 in “Nutrients” Eating barley for life may lead to healthier aging in mice.
24 citations
,
August 2022 in “Immunity” Type 2 immunity helps control mite growth in hair follicles, preventing damage.
1 citations
,
October 2023 in “Animals” A small dose of Platycladus orientalis leaf extract improves raccoon dogs' growth and health, but higher doses can be harmful.
1 citations
,
July 2022 in “Frontiers in Microbiology” MSM supplementation in kittens improves hair quality and growth rate without harming their health.
July 2025 in “Frontiers in Pharmacology” G-1 promotes hair growth in female mice by activating specific signaling pathways.
March 2025 in “Skin Appendage Disorders” Selenium disulfide shampoo effectively reduces dandruff and improves scalp health for all hair types.
September 2023 in “International Journal of Cosmetic Science” Both shampoos increased scalp germ numbers but did not change the overall microbial community composition.
October 2022 in “Biomolecules” Allopregnanolone can reduce gut inflammation and normalize neurotransmitter levels after finasteride withdrawal.
16 citations
,
December 2020 in “PloS one” Researchers found WNT10A to be a key gene in developing goat hair follicles.
October 2022 in “Research Square (Research Square)” Key genes linked to immune response are highly active in lupus-affected hair follicles.
8 citations
,
December 2022 in “Journal of Translational Medicine” WNMFDDA effectively predicts drug-disease associations.
March 2026 in “Mendeley Data” rwSALT provides precise hair regrowth measurement from scalp photos.
March 2026 in “Mendeley Data” rwSALT accurately measures hair regrowth in alopecia areata using scalp photos.
9 citations
,
June 2012 in “Joint Conference on Lexical and Computational Semantics” The gel effectively thickens eyelashes and eyebrows without side effects.
December 2022 in “Research Square (Research Square)” Key genes linked to immune response are upregulated in hair follicles and skin tissues in chronic discoid lupus erythematosus.
32 citations
,
September 2013 in “Breast cancer research” A specific gene variant is linked to a higher risk of hair loss from chemotherapy in breast cancer patients.