11 citations
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January 2014 in “Egyptian Journal of Dermatology and Venereology” This study found that women with female-pattern hair loss had significantly lower serum levels of 25-hydroxyvitamin D compared to healthy controls, but it does not establish causation.
14 citations
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January 2013 in “Journal of the Egyptian Women's Dermatologic Society /Journal of the Egyptian Women's Dermatologic Society” November 2025 in “Fayoum University Medical Journal/Fayoum University Medical Journal ” This study found that intralesional vitamin D3 injections significantly increased serum vitamin D3 levels in patients with localized alopecia areata, although baseline vitamin D3 levels did not predict disease severity or treatment response.
5 citations
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January 2020 in “The mental health clinician” This case report found that vitamin D3 supplementation may improve hair growth and reduce hair-pulling behavior in patients with trichotillomania, as observed in two female patients over 3 to 4 months.
September 2021 in “Journal of advances in medicine and medical research” This study indicated a correlation between female pattern hair loss and decreased serum levels of Vitamin D3, suggesting that Vitamin D3 evaluation may be important in managing this condition.