The present invention relates to a composition in the form of an emulsion containing portions of hollow spheres of organosilicon-based material, the portions of hollow spheres having a mean diameter ranging from 0.05 to 10 μm. The invention also relates to physiologically acceptable emulsion compositions comprising hollow spheres, and to a process for fading out skin surface defects, in particular to reduce the sheen of the skin and/or to fade out pores, shadows under the eyes, marks, wrinkles and/or fine lines, comprising the topical application to the skin of the above-mentioned compositions.