305 citations
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February 2007 in “Hormone and metabolic research” Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.
20 citations
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April 2002 in “PubMed” Mini rats have thinner skin, more fat, and different hair cycles than Wistar rats due to lower growth hormone levels.
10 citations
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November 2016 in “International Journal of Cosmetic Science” A tough membrane between the outer and inner layers of human hair protects it from damage.
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January 1970 in “Cell and Tissue Research” 28 citations
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January 2009 in “Journal of Investigative Dermatology” Stem cells in eccrine glands could be used for regenerative medicine.
3 citations
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October 1994 in “Medical Molecular Morphology” The lower part of rat vibrissa hair gets more blood and is well-protected for growth.
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January 2008 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Early diagnosis and treatment of Hidradenitis Suppurativa are important to prevent serious physical and mental effects.
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April 1995 in “PubMed” Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.
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April 1978 in “Genetics Research” Mice with the ab gene have abnormal sebaceous gland development, affecting sebum production.
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February 1982 in “Cell and Tissue Research” September 2001 in “Swiss Medical Forum ‒ Schweizerisches Medizin-Forum” 27 citations
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May 2011 in “Journal of Investigative Dermatology” TCHHL1 is a protein important for hair growth, found in hair follicles.
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January 1976 in “Vitamins and hormones” Prostate cells have proteins that bind to specific hormones, which can increase protein production when activated by these hormones.
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August 2018 in “Scientific reports” Claudin-1 is important for the barrier function and growth of hair.
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July 2006 in “British journal of dermatology/British journal of dermatology, Supplement” Testosterone increases hair follicle cell growth when beard or axillary skin cells are present together.
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May 2010 in “Journal of Medicinal Chemistry” A new compound was created in 2010 that can control oil production when applied to the skin, and its effects are completely reversible after two weeks.
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January 1993 Trichohyalin is a versatile protein involved in hair and skin structure.
January 2002 in “Proceedings of The Japanese Society of Animal Models for Human Diseases” Keratin2-6g is crucial for hair follicle development, with mutations causing cell degeneration and vacuolation.
July 2025 in “Journal of Investigative Dermatology” Reduced AhR signaling in HS tunnels leads to persistent inflammation and microbial imbalance.
April 2016 in “Journal of Investigative Dermatology” Boosting HGF signaling could improve the creation of hair follicles in lab-made skin.
18 citations
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February 1992 in “Molecular Biology Reports” A specific type II hair keratin was identified and found in hair cortex and tongue cells.
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August 1996 in “The journal of experimental zoology/Journal of experimental zoology” Red deer hair cells offer a new way to study how hormones affect hair growth.
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October 1988 in “The Journal of Clinical Endocrinology & Metabolism” Leuprolide effectively reduces hair growth in hirsute women at higher doses.
April 2019 in “Journal of the Endocrine Society” Bilateral ovarian hyperthecosis is a rare but treatable cause of increased facial hair in postmenopausal women.
Age-related changes in scalp glands may affect hair health, but sulforaphane might help.
January 2024 in “Theranostics” HDAC6 helps keep ovarian follicles dormant, extending female fertility.
5 citations
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October 2020 in “Experimental dermatology” A specific type of skin cell creates an opening for hair to grow out, and problems with this process can lead to skin conditions.
98 citations
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July 2014 in “Trends in Molecular Medicine” Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.
April 2022 in “Our Dermatology Online” A woman had unusual hair growth on one side of her chin without a known cause.
2 citations
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September 2002 in “Dermatologic Surgery” Each group of hair follicles on the scalp shares one muscle that helps control hair movement.