Provided, among other things, is a delivery module for a non-greasy, water-based urea composition comprising: an aerosol delivery device； within the aerosol delivery device, the urea composition comprising 20% or more urea by weight, non-greasy lipophilic component(s), and a frothing agent, the urea composition having a viscosity low enough to support aerosol delivery, and the urea composition effective to form a foam upon propellant-driven aerosol delivery； and within the aerosol delivery device, a propellant.
