Medically reviewed by Casey Gallagher, MD Fact checked by Sarah Scott Castile soap is a vegetable-based soap that is free of ...

the abundance of olive trees in the Mediterranean area led to the development of soaps based on olive oil and lye from the ashes of the barilla, a common plant. The soap shown here is Castile soap, an ...

Castile soap is the household cleaning powerhouse you never knew you needed. If you haven’t heard of Castile soap, let us introduce you to the new MVP of your cleaning ingredient list.