13 citations
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April 2018 in “Journal of The American Academy of Dermatology” This study found that 64.8% of patients with different types of alopecia had vitamin D deficiency, and those with lichen planopilaris and telogen effluvium had higher odds of severe deficiency compared to patients with alopecia areata.
2 citations
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May 2022 in “Diagnostics” This study confirmed that 25(OH)D3 can be detected in hair samples from healthy young adults, but no correlation was found between hair and serum 25(OH)D3 concentrations, indicating limited potential as a standalone biomarker.
1 citations
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January 2018 in “Journal of Steroids & Hormonal Science” This study observed no significant difference in vitamin D levels between children with alopecia areata and controls, but higher complete improvement in alopecia was noted among patients with vitamin D deficiency undergoing oral vitamin D treatment.
June 2026 in “Research Square” This study found that lower vitamin D levels were inversely associated with the severity of female pattern hair loss and patchy alopecia areata, but not with telogen effluvium.
April 2022 in “JAAD International” This study suggests that vitamin D deficiency is likely not involved in the development of frontal fibrosing alopecia, as patients showed similar vitamin D levels to those with female pattern hair loss.