Poster Savon la Confiance
Poster Savon la Confiance

In 1688, ruling that Marseille soap was to be made “without any mixture of fats, under penalty of confiscation of the goods“, his son, Jean-Baptiste Colbert de Seignelay, ensured the quality and reputation of Marseille soap factories.

But soap existed long before that date: probably 5000 years BC. Made of animal fats and ashes at that time, the populations of the Mediterranean basin like the Vikings and the Celts made soap in the 10th century.

Then the recipes evolved: hair ointment (gallic sapo) was transformed into a real soap with washing and foaming powers.

At the end of the 17th century, the formulation was more or less the same: sodium carbonates harvested on the shores of salt lakes (and later, soda made from plants, especially glasswort), alkalis or potash in northern Europe, are mixed with animal fats and then vegetable oils.