176 citations
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August 2000 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Hormone treatments in transsexual individuals reduce hair growth and oil production in male-to-females and increase them in female-to-males.
January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Men are increasingly seeking quick-result cosmetic treatments for their thicker, oilier skin and hair loss issues.
June 2022 in “Zenodo (CERN European Organization for Nuclear Research)” 
September 1980 in “PubMed” Using selenium disulfide on guinea pigs increased hair loss.
October 2022 in “Hair Transplantation” The ISHRS standardized FUE terminology for global use in hair restoration.
March 2023 in “Reactions Weekly” 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.
January 2000 in “Hair and its disorders: biology, pathology and management, 2000, ISBN 1853177997, págs. 137-152” 
January 2025 in “Journal of Cosmetic Dermatology” The supplement improved hair growth and quality in men with thinning hair and was safe to use.
4 citations
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July 1987 in “Dermatologic Clinics” December 2025 in “Clinical Case Reports” Exosome therapy helped regrow and repigment beard hair in a man with alopecia.
4 citations
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March 2007 in “Hair transplant forum international” The document's conclusion cannot be provided as the content is not available.
13 citations
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November 1959 in “Annals of the New York Academy of Sciences” Human hair follicles can grow back.
January 2005 in “Journal of Zhejiang University(Sciences Edition)” Yuyi hairless mice lose hair after birth, develop thick, loose skin with folds, and show disorganized skin structure as they age.
April 2023 in “Cancer Research” Plucked hair can effectively monitor drug effects in cancer treatment.
January 1993 in “Inpharma Weekly” A new food supplement was highly effective in curing hair loss in young men.
1 citations
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January 2012 in “CINECA IRIS Institutial research information system (University of Pisa)” 30 citations
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March 1996 in “British Journal of Dermatology” 
March 2023 in “Revista médica Clínica Las Condes” The study suggests a possible increase in androgen receptors in patients with frontal fibrosing alopecia, but more research is needed.
March 2024 in “Hair transplant forum international” A single hair transplant treatment was effective for a mild scalp condition.
48 citations
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July 1993 in “Archives of Dermatological Research” Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
63 citations
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August 2008 in “Journal of Cosmetic Dermatology” Cuscuta reflexa extract may help treat hair loss caused by hormones.
February 2025 in “International Journal of Morphology” Vitamin E can reduce the negative effects of valproic acid on hair and skin development.
March 2026 in “Journal of Surgical Case Reports” Smoking and long surgeries can cause severe complications like tissue death after hair transplants.
2 citations
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May 2015 in “PloS one” Hair follicle pores help cell survival and growth, even after radiation.
2 citations
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December 2018 Alopecia frontal fibrosante affects facial vellus hair and can be diagnosed with dermatoscopy.
2 citations
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March 1997 in “Hair transplant forum international” Transplanting rat whisker follicles can lead to successful hair growth after cutting them.
1 citations
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March 1990 in “Clinical Drug Investigation” 2% topical minoxidil can help reduce hair loss and promote hair growth in male pattern baldness.
16 citations
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November 2011 in “PubMed” The treatment improved hair growth in people with male pattern baldness.