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Review
. 2022 Oct 3;5(6):e766.
doi: 10.1002/hsr2.766. eCollection 2022 Nov.

Allergic contact dermatitis from vitamins: A systematic review

Caterina Foti  1 , Gianfranco Calogiuri  2 , Eustachio Nettis  3 , Aurora De Marco  1 , Luca Stingeni  4 , Katharina Hansel  4 , Danilo Di Bona  5 , Palma Carlucci  5 , Paolo Romita  1 , Annick Barbaud  6
Affiliations
Review

Allergic contact dermatitis from vitamins: A systematic review

Caterina Foti et al. Health Sci Rep. .

Abstract

Background and aims: Vitamins are bioactive compounds naturally found in many different types of food and required by the human body for many biological functions and enzymatic activities. Due to their antioxidant properties, certain vitamin derivatives have been synthesized for inclusion in many cosmetics, thus leading to an increasing incidence of allergic contact dermatitis (ACD) cases. Therefore, the present review may be helpful to provide an insight into the sensitizing role of at least certain vitamins and may also offer possible patch test alternatives for definitive diagnosis.

Methods: This study was conducted in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines. Literature search regarding ACD cases to vitamins was performed using the Medline, PubMed, Scopus, EMBASE, and Google Scholar databases from January 1940 up to June 2021.

Results: A total of 4494 articles matched the keywords used for the researched. Records removed before screening included 15 duplicate articles and 3429 not eligible articles (e.g., not written in English, studies on animals, not relevant to the topic). A total of 1050 articles underwent the screening phase and 258 were therefore excluded as they were not primary studies. Subsequentially, 792 articles were considered eligible for the review and 688 of them were finally excluded as they did not report the outcome of interest. Therefore, 104 articles were definitely included in the present review.

Conclusion: ACD to vitamins is still probably an underestimated issue in cosmetology, as many vitamins are considered "natural" and therefore "safe" ingredients. On the contrary, according to current literature, almost all vitamins contained in topical products are able to induce allergic reactions, with the exception of vitamin B2 and vitamin B9. Patch tests are not standardized, thus leading to difficulties in diagnosis.

Keywords: allergic contact dermatitis; fat‐soluble vitamins; hydro‐soluble vitamins; lymphocyte transformation test; multivitamins; patch test.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Flow diagram of research screening
See this image and copyright information in PMC

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