Serum 25-Hydroxyvitamin D Levels in Alopecia Areata, Female Pattern Hair Loss, and Male Androgenetic Alopecia in a Chinese Population

April 2020 in “ Journal of Cosmetic Dermatology ”

Jun Zhao, Youyu Sheng, Chunyang Dai, Sisi Qi, Ruiming Hu, Wenlong Rui, Ying Miao, Feng Xu, Yao Zhang, Qinping Yang

serum 25-hydroxy vitamin D alopecia areata female pattern hair loss male androgenetic alopecia vitamin D deficiency 25(OH)D AA FPHL MAGA

TLDR Low vitamin D levels are linked to different types of hair loss.

This study investigated the association between serum 25-hydroxy vitamin D levels and different types of hair loss in a Chinese population. The study found that hair loss patients' serum 25(OH)D levels decreased significantly in most seasons and/or period of age. Alopecia areata (AA) patients were found to have lower levels of vitamin D than healthy controls, and vitamin D deficiency correlates with disease severity. Female pattern hair loss (FPHL) patients were found to have significantly lower serum 25(OH)D levels than healthy women. Male androgenetic alopecia (MAGA) patients were also found to have significantly lower serum 25(OH)D levels than healthy men. The study suggests that 25(OH)D deficiency is associated with hair loss.

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