22 citations
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April 1972 in “Journal of Steroid Biochemistry” Beard hair follicles convert testosterone to 5α-dihydrotestosterone most intensively.
April 2023 in “Journal of Investigative Dermatology” Defective T cell metabolism can cause early skin aging and poor hair follicle stem cell function.
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Human hair follicles have a unique way of using energy and might use the Cori cycle; blocking CCR5 could help treat hair loss.
31 citations
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October 1971 in “Steroids” Human beard hair follicles change testosterone into other related hormones, but don't much change androstenedione into testosterone.
April 2023 in “Journal of Investigative Dermatology” Staphylococcus epidermidis affects hair growth and metabolism, suggesting it could help manage hair growth issues.
71 citations
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June 1993 in “Journal of Investigative Dermatology”
August 1993 in “Journal of Dermatological Science” Testosterone metabolism in balding scalp cells may not be the main cause of hair loss.
November 2025 in “Phytomedicine” L-rhamnose may promote hair growth by boosting energy production in cells.
September 2017 in “Journal of Investigative Dermatology” Stabilizing HIF-1A in hair follicles may reduce oxidative stress and promote hair growth by increasing glycolysis.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Blocking a key energy pathway in human hair follicles can trigger stress responses that stop cell growth.
January 2026 in “British Journal of Dermatology” Caffeine and DMG increase calcium influx in hair follicle cells without being toxic.
19 citations
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November 2018 in “Nutrients” Annurca apple extract may protect mouse hair from damage by chemotherapy and could help treat hair loss without promoting cancer growth.
August 2023 in “Chinese Medicine” 7 citations
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September 2019 in “Journal of Investigative Dermatology” 11 citations
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October 1997 in “British Journal of Dermatology” Wool follicles grew fibres for 8-10 days in a serum-free culture, influenced by calcium, glucose, amino acids, and insulin.
February 2026 in “Nano Research” A new microneedle treatment can help regrow hair by improving lymphatic function and metabolism.
1 citations
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January 1996 Cysteine and arginine are essential for hair growth and thickness.
233 citations
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November 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Creating stronger blockers for skin enzymes might lead to better treatment for conditions like acne and excessive hair growth.
202 citations
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August 2017 in “Nature cell biology” Lactate production is important for activating hair growth stem cells.
159 citations
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July 2006 in “Endocrine Reviews” Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.
67 citations
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September 2017 in “Cell Reports” Caloric restriction improves skin and fur structure but can cause muscle loss and movement issues.
50 citations
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September 2011 in “Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids” Maintaining the right amount of retinoic acid is crucial for healthy hair and skin.
31 citations
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August 2001 in “PubMed” Hair follicles convert androgens, affecting hair loss patterns.
30 citations
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October 2016 in “Current research in translational medicine” Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.
25 citations
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July 2019 in “Experimental Dermatology” Cholesterol balance is important for hair health, and problems with it can lead to hair loss conditions.
24 citations
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July 2018 in “Stem cells” Runx1 controls fat-related genes important for normal and cancer cell growth, affecting skin and hair cell behavior.
22 citations
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February 2008 in “Biochemical and Biophysical Research Communications” Androgen effects on hair follicles vary by skin area.
20 citations
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October 2017 in “Stem Cell Reports” Alkaline Ceramidase 1 prevents early hair loss in mice by keeping hair follicle stem cells balanced.
19 citations
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January 2019 in “Ginekologia Polska” The combined Myo-inositol and D-chiro-inositol treatment improved weight, hormone levels, and skin conditions in women with PCOS.
16 citations
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January 2021 in “BMC Genomics” Higher hair follicle density leads to more wool in rabbits, influenced by specific genes and lncRNAs.