Cosmetic composition in the form of an aqueous gel containing a gelling agent and an aqueous medium, in which the gelling agent consists of a mixture of:a) at least one at least partially neutralized, crosslinked acrylic acid polymer having a molecular weight of between 700,000 and 4,500,000 approximately,b) at least one at least partially neutralized copolymer of acrylic acid and vinyl monomer bearing amine, amidine and nitrile functions, and obtained by hydrolysis of polyacrylonitrile, having a molecular weight of between 100,000 and 200,000 approximately, andc) at least one polyethylene glycol having a molecular weight of between 10.sup.5 and 3.times.10.sup.7 approximately.