How coca leaves turned wine into a tonic
In the late 19th century, French chemist and entrepreneur Angelo Mariani made Vin Mariani by steeping coca leaves in Bordeaux wine. The alcohol drew coca’s active alkaloids—including cocaine, which occurs naturally in the leaves—into the drink. A glass therefore combined wine’s alcohol with stimulant compounds from coca; it was not simply grape wine flavored with leaves.
At the time, coca products were promoted as restorative tonics, and cocaine was not yet treated with the restrictions that later reshaped its sale. Mariani marketed the drink as a way to lift energy and aid well-being, placing it among a crowded field of patent medicines whose grand health claims often exceeded what evidence could establish.
What a papal medal did for the brand
Pope Leo XIII’s association gave the product something ordinary advertisements could not: the appearance of approval from a powerful religious institution. Mariani used the pope’s image in promotional material, and Leo awarded him a Vatican gold medal. That recognition did not establish the drink’s medical value, but it lent the brand prestige and made its tonic claims more persuasive to potential customers.
The episode shows how authority could function as a form of advertising before modern rules tightly separated celebrity endorsement from medical proof. A papal medal could make a coca-and-wine concoction seem respectable—even as its stimulating effects came from the very plant compounds that would later attract far greater scrutiny.
