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Photoallergy to benzophenone.

Abstract
Incorrect diagnosis of photoallergy to sunscreen products represents a unique clinical dilemma. Increasing sunscreen usage for suspected idiopathic photosensitivity or a change to a sunscreen containing the same photoallergen only worsens the problem. While photoallergy to p-aminobenzoic acid and its esters is well known by dermatologists and the lay public, benzophenone photoallergy is not well appreciated. We report herein the cases of four individuals with photoallergy to oxybenzone in sunscreens. It is likely that such reactions will become more commonplace since oxybenzone is by far the most frequently used agent in modern, high sun protection factor sunscreens (greater than 8 sun protection factor) being marketed today.
AuthorsE Knobler, L Almeida, A M Ruzkowski, J Held, L Harber, V DeLeo
JournalArchives of dermatology (Arch Dermatol) Vol. 125 Issue 6 Pg. 801-4 (Jun 1989) ISSN: 0003-987X [Print] United States
PMID2786382 (Publication Type: Case Reports, Journal Article)
Chemical References
  • Benzophenones
  • Sunscreening Agents
  • 4-Aminobenzoic Acid
Topics
  • 4-Aminobenzoic Acid (adverse effects)
  • Aged
  • Benzophenones (adverse effects)
  • Female
  • Humans
  • Male
  • Middle Aged
  • Photosensitivity Disorders (chemically induced)
  • Sunscreening Agents (adverse effects)
  • Ultraviolet Rays

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