The invention relates to an emulsion comprising a continuous aqueous phase and an oil phase dispersed in the form of drops, or vice versa, said drops comprising a shell formed by at least one anionic polymer having at least one carboxylic acid function and at least one cationic polymer having at least two amine functions, in which the amount of amine functions provided by the cationic polymer in the oil phase is between 0.2 μmoΙ and 10.5 μmoΙ per gram of oil phase.