abstract of the disclosure fine dry particulate retinoid compositions suitable for use in topical formulations, as well as methods of making the same, are provided. in the dry particulate retinoid compositions, the retinoid active agent is associated with the particles, eg, via entrapment in the pores of the particles and / or ionic binding and / or non-covalent binding to the surface of the particles and / or loosely associated with the particles. Also provided are topical formulations which include the dry particulate retinoid compositions of the invention, and methods of using the same. Patent Summary: "Dry fine particulate retinoid active agent compositions and topical formulations including them". The present invention relates to dry fine particulate retinoid compositions suitable for use in topical formulations as well as methods for their preparation. In dry fine particulate retinoid compositions, the retinoid active agent is associated with the particles, for example through particle entrapment and / or ionic bonding and / or weakly and non-covalently surface bonding of the particles. bound to the particles. The present invention also provides topical formulations including dry fine particulate retinoid compositions of the invention and methods of using them.abstract of the disclosure fine dry particulate retinoid compositions suitable for use in topical formulations, as well as methods of making the same, are provided. in the dry particulate retinoid compositions, the retinoid active agent is associated with the particles, e.g., via entrapment in the pores of the particles and/or ionic binding and/or non-covalent binding to the surface of the particles and/or loosely associated with the particles. also provided are topical formulations which include the dry particulate retinoid compositions of the invention, and methods of using the same. tradução do resumo resumo patente de invenção: "composições de agente ativo reti-nóide particulado fino seco e formulaçõ
