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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Natural ingredients in cosmetic products - a suggestion for a screening series for skin allergy

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DOI

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Background: Naturally derived cosmetic product ingredients of both plant and animal origin are being included increasingly in product formulations in order to cater to consumer preferences. They may be an overlooked cause of reactions to cosmetic products in some patients with dermatitis. Objectives: To identify naturally derived cosmetic product ingredients with allergenic potential (type I and type IV) and propose a cosmetic screening test series. Methods: The study was conducted in two steps. The first step was a market survey using a nonprofit application helping consumers avoid problematic substances in cosmetic products. The application contained 10 067 cosmetic products that were label checked for naturally derived cosmetic product ingredients. The second step was a literature search to examine how frequently the naturally derived ingredients were described and related to allergic reactions in cosmetics or other topically administered products. Results: We identified 121 different naturally derived cosmetic product ingredients that were included in at least 30 cosmetic products. In total, 22 ingredients were selected for a screening test series. Conclusions: We propose a supplemental patch test and a prick test screening series with naturally derived cosmetic product ingredients for patients with skin reactions to cosmetic products, aiming to identify a cause in more patients than is currently possible.

Original languageEnglish
JournalContact Dermatitis
Volume83
Issue number4
Pages (from-to)251-270
Number of pages20
ISSN0105-1873
DOIs
Publication statusPublished - Oct 2020

Bibliographical note

© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

    Research areas

  • cosmetics, food proteins, natural ingredients, patch test, skin prick test

ID: 59755406