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.
Although not certified as a pharmacist, Menier began preparing and selling various powders for medicinal purposes. This aspect of his business expanded rapidly, and in 1825 he acquired a second production facility on land along the Marne River at Noisiel, which was then a small village with fewer than 200 inhabitants situated on the outskirts of Paris.