The invention relates to a cosmetic composition of rinse-off mask type for the care of the skin, characterized in that it comprises at least one superabsorbent polymer or copolymer of water-retaining type, in the form of particles in the substantially completely hydrated state, said particles having, in the dry or nonhydrated state, a mean particle size of between 5 and 100 μm, advantageously between 20 and 50 μm, in particular between 20 and 30 μm.