2 citations
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January 1994 in “Journal of S C C J” The study concluded that certain hair growth measurements are good indicators of baldness severity and provide a more accurate assessment than subjective grading.
January 1986 in “Journal of Steroid Biochemistry” Women with severe acne, hirsutism, and androgenic alopecia often have higher levels of certain androgens, but the specific pattern can't be predicted just by looking at symptoms.
31 citations
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February 2020 in “BioMed Research International” Thai people's hair density decreases with age and varies by scalp area, but hair thickness stays the same regardless of age or scalp area.
11 citations
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December 2002 in “Controlled Clinical Trials” Simple methods using DHT levels effectively assess compliance.
The ProScope HR is an effective, user-friendly, and affordable tool for diagnosing hair loss.
January 2023 in “Research Square (Research Square)” Hair cortisol may be a good indicator of recent mood in people with bipolar disorder.
26 citations
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March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
7 citations
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December 1987 in “Fertility and sterility” The vellus index is a simple, quick, and reliable method to assess and monitor hair growth, especially in hirsutism.
28 citations
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March 1973 in “The Journal of Clinical Endocrinology & Metabolism” Altered DHEA metabolism in hair follicles may be linked to hair loss in balding men.
1 citations
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October 2020 Hair can reliably measure average estradiol levels over months in humans and monkeys.
12 citations
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January 2009 in “Breast Cancer Basic and Clinical Research” Combining hair x-ray diffraction with mammography improves breast cancer detection.
May 2025 in “American Journal of Veterinary Research” Photobiomodulation did not significantly improve hair density in dogs with alopecia X.
Hair cortisol content can indicate cortisol exposure and varies with age, puberty, and BMI in youth.
3 citations
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April 2021 in “Journal of Cosmetic Dermatology” The micrometer caliper is a reliable tool for measuring hair diameter for FUE surgery.
16 citations
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November 2008 in “Hormone research” The treatment slowed hair growth but didn't always match the improvements seen by doctors or patients.
September 2021 in “International Journal of Epidemiology” The study concluded that examining the scalp with a special magnifying device helps diagnose the cause of widespread hair loss in adult women.
21 citations
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October 2011 in “PloS one” Certain molecules in hair change with age and could be used for cosmetic treatments.
September 2023 in “Journal of the American Academy of Dermatology” Current guidelines may overlook beard and sideburn involvement in diagnosing frontal fibrosing alopecia in men.
The document concludes that measuring hair density, shaft diameter, growth rate, and anagen:telogen ratio is important for assessing hair growth treatments.
1 citations
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December 2025 in “Selçuk tıp dergisi/Selçuk Üniversitesi Tıp Fakültesi dergisi” Lower 2D:4D finger ratios in HS patients suggest prenatal hormone influence on the disease.
May 2024 in “Psychoneuroendocrinology” Family dynamics affect preschoolers' stress levels, especially DHEA.
12 citations
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January 2014 in “Menoufia Medical Journal” Dermoscopy improves diagnosis of hair and scalp disorders and can help avoid unnecessary biopsies.
October 2023 in “Dermatology practical & conceptual” Finger length ratios might help predict common hair loss.
January 2004 in “DOAJ (DOAJ: Directory of Open Access Journals)” Men with androgenetic alopecia do not have elevated DHEA-S levels.
November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” The document concludes that a new questionnaire to assess mental health in alopecia patients shows low rates of seeking mental health services and support groups.
52 citations
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March 1987 in “Journal of the American Academy of Dermatology” High DHEA-S levels may cause hair loss in young men.
9 citations
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April 2025 in “Psychoneuroendocrinology” The occipital region is best for measuring cortisol and cortisone, while the posterior vertex is better for OEA, SEA, and PEA.
January 2023 in “Al-Azhar International Medical Journal /Al-Azhar International Medical Journal” Trichoscopy is a quick, non-invasive way to measure hair density and thickness, helping diagnose hair loss.
3 citations
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October 2021 in “Clinica Chimica Acta” Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.
13 citations
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June 2015 in “International Journal of Dermatology” Patients with hair loss are much more likely to have body dysmorphic disorder than general dermatology patients.