Composition (C 1) comprising per 100% of its weight: a) - between 90 wt% and 99 wt% water comprising, in dissolved form, between 0.02 mol/L and 1 mol/L of at least one salt of ammonium cation or of a monovalent or multivalent metal cation with an organic or inorganic anion, b) - between 0.5 wt% and 5 wt% of at least one crosslinked anionic polyelectrolyte from polymerisation, in the presence of at least one crosslinking agent, 2-methyl-2-[1-oxo 2-propenyl)amino]-1-propanesulfonic acid, partially or totally salified, with at least one neutral monomer selected from among the N,N-dialkyl acrylamides, wherein each of the alkyl groups comprise between one and four carbon atoms, and at least one monomer of formula: wherein R represents a linear or branched alkyl radical comprising eight to twenty carbon atoms, and n represents a number greater than or equal to one and less than or equal to twenty, and c) - between 0.5 wt% and 5 wt% of at least one compound of formula: R 1 -(O-CH 2 -CH 2) p -OH wherein R 1 represents an aliphatic hydrocarbon radical that is saturated or unsaturated, linear or branched, optionally substituted with one or more hydroxyl groups, comprising twelve to twenty-two carbon atoms, and p represents an integer greater than or equal to ten and less than or equal to one hundred, it being understood that in said composition (C 1), the weight ratio (R a) between said crosslinked anionic polyelectrolyte and said compound of formula is greater than or equal to 0.2 and less than or equal to 2.0 and the molar ratio (R b) between the compound of formula and the salt is greater than or equal to 0.02 and less than or equal to 1. a) - between 90 wt% and 99 wt% water comprising, in dissolved form, between 0.02 mol/L and 1 mol/L of at least one salt of ammonium cation or of a monovalent or multivalent metal cation with an organic or inorganic anion, b) - between 0.5 wt% and 5 wt% of at least one crosslinked anionic polyelectrolyte from polymerisation, in the presence of at least one crosslinking agent, 2-methyl-2-[1-oxo 2-propenyl)amino]-1-propanesulfonic acid, partially or totally salified, with at least one neutral monomer selected from among the N,N-dialkyl acrylamides, wherein each of the alkyl groups comprise between one and four carbon atoms, and at least one monomer of formula: wherein R represents a linear or branched alkyl radical comprising eight to twenty carbon atoms, and n represents a number greater than or equal to one and less than or equal to twenty, and c) - between 0.5 wt% and 5 wt% of at least one compound of formula: R 1 -(O-CH 2 -CH 2) p -OH wherein R 1 represents an aliphatic hydrocarbon radical that is saturated or unsaturated, linear or branched, optionally substituted with one or more hydroxyl groups, comprising twelve to twenty-two carbon atoms, and p represents an integer greater than or equal to ten and less than or equal to one hundred, it being understood that in said composition (C 1), the weight ratio (R a) between said crosslinked anionic polyelectrolyte and said compound of formula is greater than or equal to 0.2 and less than or equal to 2.0 and the molar ratio (R b) between the compound of formula and the salt is greater than or equal to 0.02 and less than or equal to 1.