The present invention relates to a spray system comprising : · an airbrush (2); ° one or more removable containers (11) that are closed initially, and that each contain a composition for spraying onto human keratinous materials; and ° a junction device that connects the container (11) to the airbrush (2), the device including at least a composition-outlet first orifice enabling the composition to leave the container in order to be sprayed via the airbrush, and at least an air-inlet second orifice enabling air intake by the container.
