First Two Cases of Allergic Contact Dermatitis From Isobutylamido Thiazolyl Resorcinol (‘Thiamidol’) in Depigmenting Skin Care Routine

O.A. is an investigator, consultant and/or speaker for Leo Pharma, Abbvie, Sanofi, L'Oréal/La Roche Posay and Bioderma/NAOS. J.P. is an investigator, consultant and/or speaker for Leo Pharma, Abbvie, Sanofi, Pfizer, Lilly and Almirall. A.C. is an investigator, consultant and/or speaker for Leo Pharma, Abbvie, Sanofi, Pfizer, Lilly and Almirall. The other authors declare no conflicts of interest.