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A Review of Vitamin B12 in Dermatology

American Journal of Clinical Dermatology volume 16, pages 27–33 (2015)Cite this article

Abstract

Vitamin B12, also known as cobalamin, is a water-soluble vitamin that is important in the hematological and nervous systems, and it has a complex relationship with the skin. Altered cobalamin levels can lead to dermatological manifestations, which may indicate a deficiency or excess of this vitamin. The biochemistry and metabolism of cobalamin is complex, and diseases can be associated with alterations of this metabolic pathway. The cutaneous manifestations of cobalamin deficiency include hyperpigmentation (most commonly); hair and nail changes; and oral changes, including glossitis. Additionally, several dermatologic conditions, including vitiligo, aphthous stomatitis, atopic dermatitis, and acne are related to cobalamin excess or deficiency. The cutaneous complications of cobalamin therapy include acne, rosacea, and allergic site reactions, or anaphylaxis with cobalamin injections. As cobalt is a component of cobalamin, patients with cobalt sensitivity have been reported to have cutaneous manifestations when receiving cobalamin replacement therapy.

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Acknowledgments

No sources of funding were used to prepare this review. Jennifer Brescoll and Steven Daveluy have no conflicts of interest that are directly relevant to the content of this review.

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Authors and Affiliations

  1. Henry Ford Hospital, 3799 West Grand Boulevard, Detroit, MI, 48202, USA

    Jennifer Brescoll

  2. Department of Dermatology, Wayne State University, Oakwood Dearborn Medical Park, Suite 300, 18100 Oakwood Boulevard, Dearborn, MI, 48124, USA

    Steven Daveluy

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Correspondence to Jennifer Brescoll.

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Brescoll, J., Daveluy, S. A Review of Vitamin B12 in Dermatology. Am J Clin Dermatol 16, 27–33 (2015). https://doi.org/10.1007/s40257-014-0107-3

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  • DOI: https://doi.org/10.1007/s40257-014-0107-3

Keywords

  • Atopic Dermatitis
  • Homocysteine
  • Isotretinoin
  • Vitiligo
  • Cobalamin