Emulsion containing organosilicon-based portions of hollow spheres

A process for fading out skin surface defects of greasy skin and/or aged skin, comprising topically applying to greasy skin and/or aged skin in need of fading out of skin surface defects a composition in the form of an emulsion comprising, in a physiologically acceptable medium, portions of hollow spheres consisting of organosilicon-based material, the spheres having a mean diameter ranging from 0.05 to 10 μm in an amount effective to fade out skin surface defects of the greasy skin and/or aged skin, wherein the portions of hollow spheres have a shape formed, in longitudinal cross section, from a small inner arc (11), a large outer arc (21) and segments (31) linking the ends of the respective arcs, the width (W1) between the two ends of the small inner arc (11) ranging from 0.01 to 8 μm on average, the width (W2) between the two ends of the large outer arc (21) ranging from 0.05 to 10 μm on average and the height (H) of the large outer arc (21) ranging from 0.015 to 8 μm on average and comprise a crosslinked polysiloxane of three-dimensional structure consisting of units of formula (I):

• SiO2 and of formula (II):
• R1SiO1.5 in which R1 is an organic group containing a carbon atom directly linked to the silicon atom.