Patch Testing to Propylene Glycol: The Mayo Clinic Experience

  title={Patch Testing to Propylene Glycol: The Mayo Clinic Experience},
  author={Soogan C. Lalla and Henry L. Nguyen and Hafsa M. Chaudhry and Jill M. Killian and Lisa A. Drage and Mark Denis P Davis and James A. Yiannias and Matthew R. Hall},
Background Propylene glycol (PG) is a solvent, vehicle, and humectant being used increasingly in a wide array of personal care products, cosmetics, and topical medicaments. Propylene glycol is a recognized source of both allergic and irritant contact dermatitis. Objective The aim of the study was to report incidence of positive patch tests to PG at Mayo Clinic. Methods We retrospectively reviewed records of all patients patch tested to PG from January 1997 to December 2016. Results A total of… Expand
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