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Related Experiment Videos

Contact dermatitis from antioxidants.

J Roed-Petersen, N Hjorth

    The British Journal of Dermatology
    |March 1, 1976
    PubMed
    Summary

    Allergic contact dermatitis can be caused by antioxidants like nordihydroguairetic acid (NDGA). Further investigation into hidden sensitizers in cosmetics and topical products is recommended.

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    Area of Science:

    • Dermatology
    • Allergology
    • Toxicology

    Background:

    • Investigating contact sensitivity to antioxidants in patients with eczematous dermatitis.
    • Assessing the role of specific antioxidants as potential allergens.

    Observation:

    • Identified six cases of allergic contact sensitivity to nordihydroguairetic acid (NDGA).
    • Observed positive patch tests to butylated hydroxyanisole and butylated hydroxytoluene in four patients.
    • Noted unexplained positive patch tests for gallate esters and Vitamin E (d,l-alpha-tocopherol).

    Findings:

    • Confirmed allergic contact sensitivity to NDGA in six patients.
    • Demonstrated relevance of butylated hydroxyanisole/hydroxytoluene sensitivity through oral challenge.
    • Highlighted potential for less common antioxidants to cause allergic reactions.

    Implications:

    • Suggests a need for thorough ingredient disclosure in topical products.
    • Warrants further research into identifying hidden sensitizers in cosmetics and medicaments.
    • Emphasizes the importance of considering antioxidant sensitivity in differential diagnosis of dermatitis.

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