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Skin reactions to sunscreens.
R L Nixon1, K E Frowen, A E Lewis
1Skin and Cancer Foundation, Carlton, Victoria, Australia.
The Australasian Journal of Dermatology
|June 1, 1997
Summary
Sunscreen reactions, including irritant and allergic types, are not uncommon. Allergic reactions were more frequently linked to sunscreen ingredients than the sunscreen products themselves.
Area of Science:
- Dermatology
- Allergology
- Cosmetic Science
Background:
- Sunscreen reactions are frequently reported in clinical settings.
- Understanding the causes of these reactions is crucial for product development and patient care.
Purpose of the Study:
- To evaluate the prevalence and nature of sunscreen reactions in patients referred to a patch testing clinic.
- To differentiate between irritant and allergic reactions to sunscreens and their components.
Main Methods:
- Initial screening via questionnaire for sunscreen use and reactions.
- Patch testing with sunscreen products and individual chemical components for relevant cases.
- Analysis of reaction types (irritant vs. allergic contact dermatitis).
Main Results:
- Irritant reactions were more prevalent than allergic contact dermatitis.
- Allergic reactions to sunscreens were less common than to other chemicals within sunscreen formulations.
- Specific chemical components were identified as potential allergens.
Conclusions:
- Sunscreen reactions are a significant concern, with irritant reactions being more common.
- Non-sunscreen chemicals in formulations are a notable source of allergic contact dermatitis.
- Further investigation into specific ingredients is warranted to improve sunscreen safety.