Use in cosmetics or in topical application of an aqueous dispersion based on organopolysiloxanes and on a cross-linked acrylamide/neutralized 2-acrylamido-2-methylpropanesulfonic acid copolymer

An aqueous dispersion for use in cosmetics or in topical application comprising, in a cosmetically or physiologically acceptable aqueous medium, at least one organopolysiloxane and one crosslinked acrylamide neutralized 2-acrylamido-2 -methylpropanesulfonic acid copolymer, the organopolysiloxane is selected from the group consisting of

• (i) cyclic silicons containing 3 to 7 silicon atoms or cyclocopolymers of dimethylsiloxane/methylalkylsiloxane type;
• (ii) linear silicons having 2 to 9 silicon atoms and having a viscosity less than or equal to 5.10.sup.1-6 m.sup.2 /s at 25.degree. C.;
• (iii) polyalkylsiloxane;
• (iv) polyarylsiloxane;
• (v) polyalkylarylsiloxane;
• (vi) silicon gums;
• (vii) silicon resins;
• (viii) organomodified polysiloxanes and their mixtures,
• the organopolysiloxane is present in proportions of between 0.5 and 50% by weight with respect to the total weight of the dispersion and the copolymer is present in proportions of between 0.05 and 10% by weight with respect to the total weight of the dispersion, with the proviso that the organopolysiloxane is not chosen from linear polydimethylsiloxanes with a viscosity of less than 10.sup.-1 m.sup.2 /s, the copolymer is obtained by copolymerization of 70 to 55 mol % of acrylamide and 30 to 45 mol % of sodium 2-acrylamido 2-methylpropanesulfonate in the presence of 10.sup.-4 to 4.10.sup.-4 mol of crosslinking agents per mol of mixture of the two monomers.