The present invention mainly relates to a cosmetic and/or dermatological composition in the form of an emulsion other than the water-in-oil type, preferably an oil-in-water emulsion, comprising (A) at least one N-long chain acyl neutral amino acid ester represented by formula (I) : wherein R1 represents a substituted or non-substituted, branched or straight alkyl or alkenyl group having 5 to 21 carbon atoms； R2 and R3 independently represent a hydrogen atom or a substituted or non-substituted, branched or straight alkyl group having 1 to 4 carbon atoms； R4 represents a substituted or non-substituted, branched or straight alkyl group having 1 to 34 carbon atoms except for a behenyl group, a substituted or non-substituted, branched or straight alkenyl group having 2 to 34 carbon atoms, or a substituted or non-substituted steryl group； and n represents an integer of 0 to 2, and (B) at least one polyalcohol having 3 or more hydroxy groups. The present invention is useful because it is possible to provide a good moisturizing effect to the cosmetic and/or dermatological composition, in the form of an oil-in-water emulsion, including a sterol ester of an N-long chain acyl neutral amino acid preferably with an alkyl or alkenyl ester of an N-long chain acyl neutral amino acid, by combining one or more polyalcohol having 3 or more hydroxy groups with the ester(s).
