Olive Oil in Soap: 7 Best Picks for 2026

A flat lay of ingredients including a bottle of olive oil, lye, and essential oils, ready for natural soap production.

Olive oil in soap is the plant oil that, once reacted with lye in a process called saponification, becomes a gentle, glycerin-rich cleanser. Traditionally it’s the backbone of castile and Aleppo-style bars. The result is a mild, low-lather soap with a reputation for being kind to dry skin. Here’s the twist. The word “castile” on … Read more