Ethylenediamine/Hydrogenated Dimer Dilinoleate Copolymer Bis-Di-C14-18 Alkyl Amide is a copolymer of ethylenediamine and hydrogenated dilinoleic acid, end-blocked with di-C14-18 alkyl amide. See Reported Ingredient Functions-The Cosmetic Drug Distinction, in Regulatory and Ingredient Use Information, Volume I, Part A.