Allergic contact dermatitis from resacetophenone (2',4'-dihydroxyacetophenone; CAS no. 89-84-9) in an antifungal nail preparation.

We report the first two cases of allergic contact dermatitis from resacetophenone in a nail antifungal preparation. Patch tests gave positive reactions to resacetophenone (0.1% and 1% pet.

Preservatives in Personal Hygiene and Cosmetic Products, Topical Medications, and Household Cleaners in Spain.

Introduction: Preservatives are added to cosmetic, household cleaning, and other industrial products to prevent the growth of microorganisms. Unfortunately, exposure to these substances can cause sensitization.

Material And Methods: Between January and June 2015, we analyzed the ingredients of 2300 products commercially available in Spain to identify the frequency of a wide variety of preservatives in different product categories.