US Patent 12128118 Aerosol dispenser containing a hairspray composition and a nitrogen propellant

An aerosol hairspray product with a spray device and a pressurizable container having a container wall which encloses a reservoir for storing a compressed gas propellant and a hairspray composition. The hairspray composition can be ethanol-based or ethanol-free. The spray properties of the product, including the spray rate and median droplet size, can be maintained throughout the lifetime of the container.