title: Contact Allergy to Surfactants in a Hypoallergenic Liquid Cleanser.
abstract: : Surfactants are a relatively rare cause of allergic contact dermatitis (ACD) and testing patients to personal care products containing these ingredients has historically been difficult given their irritant properties. Using the semiopen technique, we were able to identify ACD to a hypoallergenic liquid cleanser in 2 patients who presented to our patch test clinic only months apart. Additional patch testing to individual ingredients led to subsequent identification of 3 novel surfactant allergens (sodium lauroyl sarcosinate, isostearamidopropyl morpholine lactate, and disodium lauroamphodiacetate). Only one of these allergens, sodium lauroyl sarcosinate, has previously been reported as a cause of ACD.
authors.affiliation: From the *University of Minnesota Medical School; †Department of Dermatology, University of Minnesota Medical School; and ‡Veterans Affairs Medical Center, Minneapolis, MN.
authors.forename: Jamie L
authors.initials: JL
authors.lastname: Hanson
authors.forename: Erin M
authors.initials: EM
authors.lastname: Warshaw
mesh_terms: D017449:Dermatitis, Allergic Contact / Q000209:etiology*; D003902:Detergents / Q000009:adverse effects*; D005260:Female; D006229:Hand Dermatoses / Q000209:etiology*; D006801:Humans; D008875:Middle Aged; D010328:Patch Tests; D012521:Sarcosine / Q000009:adverse effects / Q000031:analogs & derivatives / Q000276:immunology; D013501:Surface-Active Agents / Q000009:adverse effects*
chemical_list: D003902:Detergents; D013501:Surface-Active Agents; C025231:sarkosyl; D012521:Sarcosine