He exhibited at the Paris Salon for the first time in 1791, where he received negative reviews.[2] Boze initially supported the French Revolution, having joined the Jacobin Club. He painted portraits of numerous leaders of the Revolution, including Robespierre, Marat and Desmoulins, and French military officers such as Lafayette and Berthier. Under the constitutional monarchy he remained loyal to Louis XVI, and in 1792 acted as an intermediary between him and the Girondins. He was arrested as a counter-revolutionary during the Reign of Terror, but was released in 1794. He signed a petition in 1799 to have the name of fellow painter Élisabeth Vigée Le Brun removed from the list of émigrés.[2]