Faucher's father was a member of the French colony in Berlin. In 1845, Faucher married Karoline Sommerbrodt, daughter of a hat-maker from Berlin, with whom he later had a daughter, Lucie, "the best joy of his eventful life..
In 1844, Faucher got to know John Prince-Smith and became an advocate of Manchester Liberalism. Thus, they founded the Free Trade Association of Berlin (which didn't have much influence) and the Free Trade-newspaper Börsennachrichten an der Ostsee, later becoming the Ostseezeitung. In this newspaper, they advanced a Laissez faire trade policy. It was in this time that Faucher attended the regular meetings of several left-wing Hegelians and economists, including Max Stirner, at the Hippel Restaurant in Friedrichstraße.
When the Revolutions of 1848 took place, Faucher entered combat in March 18th and 19th in Stockholm (Marsoroligheterna).
In 1850, Faucher became editor of the newspaper Berliner Abendpost. After facing conflicts with the Prussian government about his Free Trade points of view, Faucher emigrated to England. There, he became correspondent for several German newspapers and later secretary to Richard Cobden.
Faucher returned to Prussia in 1861, where he was elected to the Abgeordnetenhaus (a semi-parliament) for the German Progress Party. In 1863, he founded the newspaper Vierteljahrzeitschrift für Volkswirtschaft und Kulturgeschichte (Quarterly for Economy and Culture history).