10 citations
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June 2013 in “International Journal for Vitamin and Nutrition Research” High hair calcium levels are linked to low calcium intake and low bone density.
10 citations
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January 2012 in “International Journal of Trichology” The study found no link between anxiety, vitamin B12, folate, TSH, ferritin, zinc levels, and trichodynia in telogen alopecia patients.
May 2020 in “Current developments in nutrition” Vitamin A affects the resting phase of hair growth, with both low and high levels increasing the number of hair follicles in this phase.
April 2025 in “Egyptian Journal of Medical Research” People with Telogen Effluvium have lower vitamin D levels.
July 2022 in “International Journal of Contemporary Pediatrics” Two siblings with a rare type of rickets and hair loss had low vitamin D levels, which is not typical for their condition.
13 citations
,
February 2016 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Mice without active or present vitamin D receptors maintain normal blood sugar control and islet gene expression when calcium levels are normal.
September 2023 in “Journal of The American Academy of Dermatology” The document's conclusion cannot be provided because the content is not available.
October 2025 in “Journal of the Endocrine Society” Stopping Viviscal, a hair loss product, normalized the woman's elevated alkaline phosphatase levels.
121 citations
,
January 1991 in “Acta dermato-venereologica” Terbinafine quickly builds up in skin and hair, staying effective for over 3 weeks.
4 citations
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November 2022 in “Acta dermato-venereologica” People with hidradenitis suppurativa often have lower vitamin D levels, weaker hip bones, and altered bone metabolism markers.
2 citations
,
December 2015 in “Journal of dermatology” β-interferon injections for melanoma can cause excessive hair growth at the injection sites.
January 2012 in “Vitamins & trace elements” Smoking and drinking can lower vitamin levels and potentially trigger early hair loss, but overall vitamin levels don't seem to affect hair loss duration.
January 2025 in “International Journal of Dermatology Venereology and Leprosy Sciences” People with acne tend to have lower iron levels.
August 2020 in “Benha Journal of Applied Sciences” Higher NLR, PLR, and MPV may help diagnose androgenetic alopecia.
June 2023 in “Benha Journal of Applied Sciences” People with chronic hair shedding have lower antioxidant levels in their blood compared to healthy individuals.
Women with androgenetic alopecia have normal levels of most blood steroids and binding proteins, but higher dehydroepiandrosterone. Some also have low "sex hormone-binding globulin" and "corticosteroide-binding globulin" capacity, and high "free androgen index" and "free cortisol index". Diane treatment can normalize these levels and improve hair conditions.
September 2025 in “Online Türk Sağlık Bilimleri Dergisi” Low zinc and folate levels are linked to hair loss in children.
100 citations
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October 1986 in “Clinical Endocrinology” Alopecia indicates more severe resistance to 1,25-dihydroxyvitamin D.
June 2025 in “International Journal of Science and Research (IJSR)” Low iron and vitamin D are common in young females with hair loss.
Low ferritin and vitamin D levels are linked to hair loss.
18 citations
,
May 2010 in “Zentralblatt für Veterinärmedizin Reihe A” Hair zinc levels don't reliably indicate overall zinc status in animals.
7 citations
,
October 2020 in “Dermatology practical & conceptual” Some skin, hair, and nail supplements can be toxic, interact with medications, affect lab tests, and may increase cancer risk.
29 citations
,
December 2017 in “International Journal of Dermatology” People with alopecia areata often have lower vitamin D levels, which are linked to more severe and longer-lasting hair loss, but vitamin D receptor levels in the skin don't show the same pattern and don't predict treatment success.
June 1995 in “International Journal of Gynecology & Obstetrics” Women with hair loss have higher androgen levels, while men with early balding have altered androgen ratios.
July 2021 in “PARIPEX INDIAN JOURNAL OF RESEARCH” Men with early baldness often have low vitamin D levels.
July 2021 in “Rossiiskii Zhurnal Kozhnykh i Venericheskikh Boleznei” Low vitamin D levels are linked to more skin problems.
March 2023 in “Photodiagnosis and Photodynamic Therapy” Low vitamin D levels are linked to severe and active alopecia areata.
October 2014 in “Journal of Nutrition & Food Sciences” Higher copper and lower chromium and selenium in hair are linked to insulin resistance in visceral-obese adults.
March 2023 in “Pakistan Journal of Medical and Health Sciences” Low vitamin D levels are linked to higher rates of hair loss in women.
September 2024 in “Journal of the European Academy of Dermatology and Venereology” Baricitinib effectively reduces hair loss in severe alopecia areata with mild side effects.