Although not certified as a pharmacist, Menier began preparing and selling a variety of powders for medicinal purposes. This aspect of the business grew rapidly and in 1825 he began an expansion through the acquisition of a second production facility on land on the banks of the Marne River at Noisiel, then a small village of less than 200 inhabitants at the outskirts of Paris.
Despite not being a certified pharmacist, Menier started producing and selling various powders for medicinal use. This aspect of his business grew quickly, leading him to acquire a second manufacturing facility in 1825 located near Noisiel, a small village with less than 200 inhabitants on the outskirts of Paris.