Benzophenones are ultraviolet light filters that have been documented to cause a myriad of adverse cutaneous reactions, including contact and photocontact dermatitis, contact and photocontact urticaria, and anaphylaxis. In recent years, they have become particularly well known for their ability to induce allergy and photoallergy. Topical sunscreens and other cosmetics are the sources of these allergens in most patients, but reports of reactions secondary to use of industrial products also exist. Benzophenones as a group have been named the American Contact Dermatitis Society’s Allergen of the Year for 2014 to raise awareness of both allergy and photoallergy to these ubiquitous agents.
From the *Department of Dermatology, University of Minnesota Medical School; and †The Department of Dermatology, Veterans Affairs Medical Center, University of Minnesota, Minneapolis, MN.
Address reprint requests to Erin M. Warshaw, MD, MS, Section of Dermatology, Minneapolis Veterans Affairs Medical Center, 1 Veterans Dr, 111K-Dermatology, Minneapolis, MN 55417. E-mail: firstname.lastname@example.org.
The authors have no funding or conflicts of interest to declare.
This material is the result of work supported with resources and the use of facilities at the Minneapolis Veterans Affairs Medical Center in the United States. The views expressed in this article are those of the authors and do not necessarily reflect the position or policy of the Department of Veterans Affairs or the United States government.