Hormones, especially testosterone and DHT, are key for penis development and function, and testosterone therapy may help with erectile dysfunction in those with low levels.
March 2019 in “European archives of medical research” Platelet-rich plasma injections are a cheap and effective way to reduce hair loss and improve hair quality in people with mild to moderate androgenetic alopecia.
Orthognathic surgeons play a key role in modifying masculine facial features to be more feminine, often improving transgender women's quality of life.
35 citations
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April 2014 in “American Journal of Medical Genetics” Boys with less severe EDA mutations in XLHED have milder symptoms and better sweat and hair production.
29 citations
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October 2012 in “Anais Brasileiros De Dermatologia” Diagnosing hair loss disorders needs clinical, dermoscopic, and histological differences, and checking menstrual cycle, weight changes, drug therapy, and nail changes.
28 citations
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November 2018 in “Journal of structural biology” Different populations have distinct hair structures related to their ancestry.
10 citations
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July 2019 in “Journal of Asia-Pacific Entomology” Different silkworm varieties have varying nutrient levels in their powders, which may promote hair growth.
7 citations
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July 2004 in “International Journal of Cosmetic Science” Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.
4 citations
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June 2021 in “Scientific Reports” Hair fiber shape and curvature are not significantly linked when ancestry is considered.
1 citations
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September 2024 in “Journal of Clinical & Translational Endocrinology” PCOS women have more severe metabolic issues and higher androgen levels than hyperandrogenic women without PCOS.
1 citations
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August 2021 in “International journal of scientific research in science and technology” The polyherbal hair oil promotes hair growth, reduces hair loss, and is safe to use.
44 citations
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November 2018 in “Journal of applied ecology” Hair analysis for stress and reproductive hormones in wildlife needs more research for accuracy across species.
4 citations
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April 2022 in “Microorganisms” Povidone iodine reduced skin bacteria more than chlorhexidine gluconate, but neither met FDA reduction standards.
2 citations
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June 2024 in “Parasites & Vectors” Chronic T. gondii infection may harm male fertility.
36 citations
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April 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Canine hair follicles have stem cells similar to human hair follicles, useful for studying hair disorders.
21 citations
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January 2020 in “Conservation Physiology” Hair follicles increase hair cortisol levels, so consistent hair collection methods are important.
2 citations
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December 2024 in “Journal of Cosmetic Dermatology” SNP profiling allows personalized skincare treatments for better results and fewer side effects.
April 2024 in “JURNAL ILMU KEFARMASIAN INDONESIA” The mud mask with 22.5% kaolin and pomegranate peel extract worked best.
November 2020 in “Universal Journal of Pharmaceutical Research” Tacrolimus is a better option than cyclosporine due to fewer side effects.
January 2023 in “Iranian Journal of Pharmaceutical Research” Stauntonia hexaphylla extract can help treat hair loss by blocking certain hormones.
53 citations
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July 2016 in “Cosmetics” Future hair cosmetics will be safer and more effective.
November 2023 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Pig hair cortisol levels are inheritable and linked to stress responses, which could help select for more resilient pigs.
December 2025 in “Brazilian Journal of Chemical Engineering”
August 2023 in “International Journal of Cosmetic Science” Rosemary extracts, specifically compounds like rosmarinic acid and carnosic acid, can protect hair from UV damage.
April 2022 in “PANACEA JOURNAL OF MEDICAL SCIENCES” People with both obvious and not-so-obvious underactive thyroid issues often have higher levels of the hormone prolactin.
The serum is safe and effective for treating hair loss.
July 2025 in “AACE Endocrinology and Diabetes” Ovarian hyperthecosis caused high testosterone and virilization symptoms in a 60-year-old woman, which improved after surgery.
43 citations
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July 2003 in “Andrology” Hormonal male contraception is effective and could be market-ready, but more research is needed to ensure safety for all ethnic groups.
6 citations
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July 2024 in “Heliyon” Steroid 5α-reductase evolved from protists and diversified in eukaryotes, with specific roles in mammals and plants.
4 citations
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December 2021 in “Pharmacological Reports” Metformin is less effective in men with early-onset hair loss.