Allergens in patients with a diagnosis of seborrheic dermatitis, North American Contact Dermatitis Group data, 2001-2016.

Competing Interests: Conflicts of interest Dr Sasseville receives royalties from UpToDate (Wolters Kluwer Health). Dr Taylor owns noncontrolling common stock in Cigna, Merck, Johnson & Johnson, AstraZeneca, and Opko Health and is a member of the Cosmetic Ingredient Review Steering Committee, and a nondependent child is employed by Pfizer. Dr Warshaw has served as a consultant for Wen by Chaz Dean and Noven Pharmaceuticals as well as a grant funded by Wen by Chaz Dean. Dr Atwater received a Pfizer Independent Grant for Learning & Change and has consulted for Henkel. Drs Silverberg, Maibach, Belsito, DeKoven, Zug, Fransway, DeLeo, Pratt, Reeder, Fowler, Zirwas, Marks, Dunnick, and Houle and Author Hou have no conflicts of interest to declare.