To be able to properly be labelled as Castile, the soap must contain a minimum of 70% pure olive oil and be 100% plant-based. Our Castile soaps include our Phytopur range, that are made with a minimum of 70% pure olive oil. A part of this percentage is hyperoxygenated (Cleo oil) to enhance the hydrating and therapeutic sides of the soap and the other 30% is coconut oil.
We can trace the origins of the Castile soap recipe back to the 8th century in the north of Spain, the land of castles, hence its name. At that time, this soap was used for skin care and it inspired and influenced the soap factories of Marseille in the 14th century.
The Castile soap recipe founded its origins with the Aleppo soap, that was the first soap to be commercialised, the father of all soaps by the syrians.
The Castile soap contains of its vegetable glycerine that is created during the saponification process. This glycerine is a hydrophilic molecule that attracts water and it allows the soap to hydrate your skin perfectly.
In contrast, the glycerine that is created during the making of a solid Marseille soap is removed from the product which makes it less hydrating than the pure Castile soap. As for the liquide Marseille soap, the glycerine is left within the finished product.