20 citations
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July 2006 in “Veterinary dermatology” Melatonin helped some Pomeranian dogs regrow hair, but it wasn't linked to estrogen receptors.
January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Researchers found key regions in the mouse hairless gene that control its activity in skin and brain cells, affecting hair follicle function.
7 citations
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October 1992 in “PubMed” Sinus hair follicles in mammals have different nerve fiber types with species-specific patterns, especially in cats.
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” The hexosamine pathway helps maintain healthy skin by affecting the skin's structure and possibly increasing hair follicle stem cells.
7 citations
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December 2006 Tribulus terrestris extract significantly increases MSH expression and melanin production in mouse hair follicles.
December 2023 in “International journal of high dilution research” Melatonin and Lissotriton improved hair quality and increased activity in mice.
53 citations
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May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
26 citations
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August 2019 in “Stem Cell Research & Therapy” PBX1 helps hair stem cells grow and change by turning on certain cell signals and preventing cell death, which may be useful for hair regrowth treatments.
July 2022 in “Journal of Investigative Dermatology” Substance P may contribute to hair loss by increasing oxidative stress and mitochondrial activity in hair follicles.
January 1972 in “NBER Chapters” Melatonin may protect skin from radiation, but its effects on aging and hair growth are unclear.
April 2026 in “The FASEB Journal” Exosomal miR-199a-3p from dermal papilla cells helps control hair color by affecting melanocytes.
1 citations
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February 1991 in “Journal of Biological Chemistry”
June 2022 in “Pflügers Archiv - European Journal of Physiology” The enzyme sEH is important for hair growth and its inhibition could help treat hair loss.
1 citations
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October 2021 in “Journal of Investigative Dermatology”
5 citations
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January 2022 in “Molecular Medicine Reports” Pine bark extract helps mice grow hair by reducing inflammation and boosting growth factors.
6 citations
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June 2016 in “Journal of cellular biochemistry” The Hr protein binds to DNA, interacts with p53, and affects cell cycle genes.
1 citations
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January 2013 in “Journal of clinical & experimental dermatology research” Melatonin may help whisker growth in mice.
September 2017 in “Journal of Investigative Dermatology” Blue light helps hair growth by affecting specific proteins in hair follicle cells.
January 2024 in “Biological & pharmaceutical bulletin” Panax ginseng extract helps human hair grow by encouraging growth phase transition and cell proliferation while reducing certain protein expression.
August 2023 in “International Journal of Molecular Sciences” The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.
12 citations
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March 2021 in “Journal of Investigative Dermatology” TRPM5 is crucial for maintaining hair growth.
49 citations
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May 2018 in “Endocrine” Women with regular menstrual cycles and PCOS have linked kisspeptin and LH hormone patterns, unlike those with irregular cycles.
April 2026 in “BMC Biotechnology” A new peptide, DualPep-ALO, may help hair growth by reducing inflammation and boosting growth factors.
September 2004 in “Experimental Dermatology” Stress and certain chemicals affect hair growth by interacting with the immune and nervous systems.
25 citations
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June 2022 in “Developmental cell” Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.
July 1993 in “学術講演梗概集. A, 材料施工,防火,海洋,情報システム技術” Evaluate prolactin levels with androgen and thyroid tests to rule out endocrine issues in patients with SAHA syndrome symptoms.
75 citations
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May 1986 in “Clinics in endocrinology and metabolism” Male hormones are important for hair and oil gland development and can cause conditions like excessive hair growth and acne.
2 citations
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January 1975 in “Archives of Dermatological Research” Certain enzymes react strongly with some hormones in rat skin during hair growth, mainly in sebaceous glands and hair sheaths.
27 citations
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September 1999 in “Journal of Investigative Dermatology” Human skin cells contain Protease Nexin-1, and male hormones can decrease its levels, potentially affecting hair growth.