Allergic contact dermatitis caused by polyester-8 (Polycrylene®) in a sunscreen moisturizer.

A 29-year-old woman developed a severe eczematous reaction to her SPF25 moisturizer during the summer. She had used the product for a number of days prior to developing the reaction on her cheeks and upper neck on the day after application. The reaction resolved after 7 days. She had no personal or family history of atopy, and she was otherwise fit and well and on no medication. She had no history of previous reactions, and had tolerated previous sunscreens without complication. Patch testing was performed with the British Society of Cutaneous Allergy baseline series and cosmetic series, a fragrance and sunscreen series, and the suspected product (allergens supplied by Chemotechnique Diagnostics, Vellinge, Sweden, and Trolab, Reinbek, Germany), using IQ Ultra chambers. Patches were removed after 2 days, and final readings were taken on day 4. Photopatch testing was performed, according to the British Photodermatology Group guidelines, with the sunscreen series and the suspected product [irradiated with ultraviolet (UV)A light at 5 J/cm2]. Results were graded according to the criteria of the International Contact Dermatitis Research Group.