3 citations
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January 2007 in “Korean Journal of Pediatrics” Zinc supplements can help skin issues even if blood zinc levels are normal.
2 citations
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May 1981 in “Journal of Animal Science” Hair mineral analysis is not very useful for assessing overall mineral composition in animals.
January 2024 in “World Journal of Biology Pharmacy and Health Sciences” High prolactin and low vitamin D levels may be linked to hair loss in women.
July 2023 in “International journal of research publications” Green coffee bean extract didn't grow hair but reduced a hair loss-related enzyme in rats.
January 2011 in “Linchuang pifuke zazhi” 3 citations
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January 2018 in “Journal of probiotics & health” 1 citations
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February 2023 in “Animals” January 1985 in “OhioLink ETD Center (Ohio Library and Information Network)”
January 2020 in “Молодий вчений” B(III) blood type may have higher hemoglobin levels, but stress affects this, and hair iron levels correlate with hemoglobin in some blood types.
Post-COVID-19 hair loss is not linked to vitamin D or quality of life but is linked to hair graying.
6 citations
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January 1998 in “Journal of applied cosmetology” January 2014 in “프로그램북(구 초록집)” Certain electrical settings can boost hair growth.
February 2014 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” 20 citations
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April 2009 in “Fertility and Sterility” January 2016 in “DSpace - FIRAT (Fırat University)”
21 citations
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January 2014 in “Dermatology Research and Practice” Hair and serum levels of zinc, copper, and iron are similar in people with alopecia areata and healthy individuals.
501 citations
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October 2008 in “Psychoneuroendocrinology” Hair cortisol levels can show increased stress during late pregnancy but only for up to six months.
33 citations
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January 2017 in “Conservation physiology” Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.
23 citations
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January 2016 in “Brazilian Journal of Psychiatry” First-episode psychosis patients have higher hair cortisol levels, indicating early stress response issues.
21 citations
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January 2016 in “NeuroImmunoModulation” Hair cortisol levels can indicate stress over the past three months.
March 2026 in “Dermatology Reports” Hair iron levels might help increase hair thickness in early hair loss.
November 2025 in “European Journal of Endocrinology” Hair steroid profiling is a feasible, non-invasive alternative to serum analysis for assessing hormone levels and metabolism.
October 2025 in “Journal of Veterinary Diagnostic Investigation” Black hair in cats has higher cortisol levels than white hair.
Wage increases and cash benefits reduced stress in early childhood educators.
Hair cortisol may help identify adrenal insufficiency in sickle cell disease patients.
Hair can show daily calcium changes, linked to body calcium levels and influenced by hormones, and can help assess calcium metabolism issues.
July 2002 in “Journal of applied cosmetology” Hair growth issues can be linked to genetics, diseases, or medications, and new treatments are being developed.