Fecha de publicación: 28/12/2022 Fuente: WIPO (eseential oils OR extracts) Method for producing cosmetic micro/nano capsules containing at least one antioxidant compound preferably extracted from microalgae and/or cyanobacteria, characterized in that it comprises the following steps:a) solubilising the antioxidant compound in an organic solvent;b) mixing the solution obtained in step a) with an aqueous solution of lysozyme to obtain an antioxidant complex formed by the antioxidant compound and by the lysozyme;c) evaporating at least a part of the organic solvent present in the solution obtained in step b);d) mixing the solution obtained in step c) with an aqueous solution of hyaluronic acid;e) homogenising the solution obtained in step d) to produce a homogeneous suspension of the antioxidant complex;f) adding to the homogeneous suspension obtained in step e) an aqueous solution of a cross-linking compound and performing the homogenisation of the aqueous solution of a cross-linking compound in the homogeneous suspension obtained in step e) to produce the micro/nano capsules containing the antioxidant compound.