The present invention relates to a non-pulverulent composition comprising, in a cosmetically acceptable medium: a) at least one oil phase containing: (i) at least one polar oil (ii) at least one lipophilic organic UV-screening agent b) at least hydrophobic silica aerogel particles the said composition comprising less than 5% by weight of non-volatile non-cyclic silicone oil relative to the total weight of the composition. The invention also relates to a cosmetic process for caring for and/or making up human keratin materials, in particular the skin of the body or of the face or the hair, comprising at least the application, to the surface of the keratin material, of at least one composition as defined above.
