Our Castile soap is made with only two ingredients, olive oil and lye which we consider a solution of sodium hydroxide and water. You can't make soap with any less ingredients than this. This bar of 100% olive oil soap has a very creamy, mild lather and is an excellent choice for those with sensitive skin or with allergies to nut-based oils.

Ingredients: Organic Extra Virgin Olive Oil, Water, and Sodium Hydroxide.