Abstract: The present invention relates to a process for the preparation of a suspension of capsules of core/shell type comprising the steps of mixing, at ambient temperature, an oily phase and polymers, at least one of which is an oligomer having a weight-average molecular weight of less than 10 000 and a hydroxyl number (NOH) of greater than or equal to 10 mg KOH/g, of homogenizing the oily phase and the polymers by heating, of dispersing the homogeneous mixture thus obtained in an aqueous phase, in order to obtain a direct preemulsion, the oily phase of which comprises the polymers, of subjecting the preemulsion thus obtained to shear forces appropriate for the reduction in the diameter of the particles of the dispersed mixture, of cooling the emulsion thus obtained to a temperature suitable for the coacervation of the said polymers and for the coating of drops of the said oily phase by the coacervates, and of cooling the suspension to a temperature suitable for the formation of the capsules by the precipitation and

Abstract: The present invention relates to a cosmetic composition intended for the care and/or make-up of keratinous substance(s) comprising, in a physiologically acceptable medium, at least one compound X, one compound Y and at least one catalyst, with at least one of the compounds X or Y being a polyorganosiloxane, and said compounds X and Y being capable of reacting together by a hydrosilylation reaction in the presence of a catalyst, with at least one compound from the compounds X and Y being present in said composition in an encapsulated form, said catalyst being combined with at least one of said encapsulated compound X or Y.

Abstract: The present invention relates to particles of core/shell type suitable for the encapsulation of cosmetic and/or therapeutic lipophilic active agents. It also relates to a process for preparing said particles as well as cosmetic or therapeutic compositions comprising them.