The instant disclosure relates to anhydrous hair-treatment compositions. The anhydrous hair-treatment compositions typically include one or more bis-urea derivatives, hydrophobic silica aerogel, and one or more solvents, for example, ester oils and non-ester oil solvents. Additional components such as silicones, etc., can also be included. Kits comprising the hair-treatment compositions and methods of using the hair-treatment compositions are also disclosed.