The invention relates to the use of compounds of the phenoxyalkylamine family of formula (I) in cosmetic and/or dermatological compositions, especially as preserving agents. The invention also relates to compositions comprising, especially as preserving agent, at least one phenoxyalkylamine of formula (I). The invention also relates to particular compounds of the phenoxyalkylamine family of formula (I) and to cosmetic and/or dermatological compositions containing them.