Structuring using an external structurant and a cosmotrope

A fluid composition, comprising:

• a. an external structurant selected from the group consisting of:
• an amido gellant, a hydrophobically modified ethoxylated urethane polymeric structurant, and mixtures thereof;
• and
• b. a cosmotrope selected from the group consisting of:
• calcium fluoride, calcium sulphate, calcium citrate, calcium formate, calcium hydrogen phosphate, calcium dihydrogenphosphate, tricalcium diphosphate, calcium acetate, sodium fluoride, sodium acetate, sodium phosphate, sodium hydrogen phosphate, sodium dihydrogenphosphate, potassium formate, tripotassium citrate, potassium chloride, potassium fluoride, potassium bromide, potassium acetate, potassium sulphate, monopotassium phosphate, dipotassium phosphate, tripotassium phosphate, ammonium chloride, ammonium fluoride, ammonium sulphate, ammonium phosphate, ammonium acetate (ammonium ethanoate), ammonium citrate, ammonium formate, tetramethylammonium chloride, tetramethylammonium acetate, tetramethylammonium bromide, tetramethylammonium fluoride, tetramethylammonium formate, tetramethylammonium sulphate, tetramethylammonium bisulphate, tetramethylammonium hydrogen sulphate, tetramethylammonium citrate, tetramethylammonium phosphate, lithium fluoride, lithium chloride, trilithium citrate, lithium acetate, lithium phosphate, lithium formate, lithium sulphate, caesium fluoride, Caesium chloride, Caesium acetate, caesium phosphate, caesium citrate, caesium sulphate, rubidium acetate, rubidium chloride, rubidium fluoride, rubidium formate, rubidium sulphate, rubidium bromide, and mixtures thereof.