1 citations
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January 2013 in “Nasza Dermatologia Online” This case report describes reversible hypopigmentation of hair in a child due to vitamin B12 deficiency, which improved after vitamin B12 supplementation.
17 citations
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December 1951 in “Experimental biology and medicine” In this study of immature male albino rats on a vitamin B12-deficient diet, vitamin B12 supplementation improved body, hair, and thymus growth more effectively than aureomycin when countering the negative effects of cortisone.
October 2019 in “Postgraduate Medical Journal” This case report describes a patient with pellagrous dermatitis related to chronic alcoholism, whose symptoms resolved within two weeks following treatment with nicotinamide, vitamin B12, and thiamine.
June 2021 in “Asian Journal of Medical Sciences” This case study highlights that vitamin B12 deficiency can cause reversible hyperpigmentation, illustrated by a vegetarian female patient whose skin lesions improved after treatment.
18 citations
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April 2021 in “Experimental Dermatology” This study in Italy observed telogen effluvium and trichodynia as common hair-related complications following COVID-19 infection, raising questions about underlying hair follicle biology and potential receptor involvement.