5 citations
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January 1989 Testosterone and dihydrotestosterone slow hair cell growth, while estradiol has no effect.
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January 2009 in “Gynecological Endocrinology” A postmenopausal woman's hair loss and excess hair growth improved after surgery for ovarian hyperthecosis.
210 citations
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May 2006 in “The FASEB journal” Oxidative stress causes hair to gray by damaging and killing pigment cells.
3 citations
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February 2016 in “Dermatologic Therapy” Using minoxidil and tretinoin on the skin, along with oral vitamin D, improved hair thickness and density in two girls with woolly hair.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The research identified specific genes that are active in the cells crucial for hair growth.
31 citations
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December 2010 in “Journal of the American Academy of Dermatology” Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
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March 1998 in “Aesthetic Surgery Journal” Experts suggest various surgical methods for hair restoration, including scalp reduction, transplantation using minigrafts, and establishing a permanent frontal hairline with follicular units. The drug finasteride may also be used alongside these procedures.
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June 2005 in “The FASEB Journal” Human hair follicles can produce cortisol like the body's stress response system.
36 citations
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June 1988 in “Australian Journal of Biological Sciences” Mouse epidermal growth factor injections in sheep affected wool growth and skin, but saline did not.
February 2026 in “ImmunoTargets and Therapy” Tumor immunotherapy can cause hair loss by disrupting hair follicle immunity.
July 2025 in “Journal of Investigative Dermatology” Immune system changes may contribute to female pattern hair loss.
50 citations
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September 1997 in “Developmental Biology”
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December 2004 in “Journal of The American Academy of Dermatology” Some postmenopausal women with frontal fibrosing alopecia stopped losing hair with finasteride treatment, hinting at a possible hormonal cause.
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January 2022 in “PloS one” Deleting the p63 gene in certain cells causes problems in thymus development and severe hair loss in mice.
1 citations
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January 2020 in “Indian Dermatology Online Journal” Pigtail hair is a sign of new hair growth and should be recognized in hair loss conditions like acute telogen effluvium.
November 2023 in “International Journal of Trichology” Trichoscopic features help diagnose and assess female pattern hair loss severity, with inflammation playing a key role.
Frontal hair in male pattern baldness shows reduced growth and thickness.
April 2024 in “bioRxiv (Cold Spring Harbor Laboratory)” GRK2 is essential for healthy hair follicle function, and its absence can lead to hair loss and cysts.
25 citations
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October 1975 in “Journal of Cutaneous Pathology” Hair growth in alopecia areata is hindered due to impaired cell activity in the surrounding tissue.
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September 1997 in “Journal of Pharmaceutical Sciences” Properly formulated large molecules can reach active levels at the hair bulb.
1 citations
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July 2018 in “Journal of dermatology & cosmetology” Hyaluronic acid successfully treated skin atrophy caused by corticosteroid injections.
September 2017 in “Korean journal of acupuncture” Crataegi Fructus water extract helps hair grow better and thicker.
December 2015 in “OPAL (Open@LaTrobe) (La Trobe University)” Estrogen speeds up hair follicle cell death, causing early hair growth cycle changes, but only if a specific receptor is present.
Dutasteride and finasteride can change hair growth genes, helping treat hair loss.
October 2020 in “Clinical and Experimental Dermatology” Hair loss improved after removing pituitary tumor.
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December 1995 in “Archives of Dermatological Research”
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July 2018 in “Journal of Cosmetic Dermatology” Chemotherapy caused hair loss with specific patterns, but most patients had hair regrowth after treatment, while some had lasting hair loss.
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April 2001 in “Experimental Dermatology” Using single dermal papillae is unreliable for analyzing androgen metabolism in hair follicles.
70 citations
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February 2017 in “Dermatologic Surgery” Treatment with plasma rich in growth factors improved hair density and thickness for hair loss patients.
149 citations
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July 2014 in “Cold Spring Harbor Perspectives in Medicine” The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.