- The lye used in soap making is the most important ingredient. It creates a chemical reaction with the fats that makes the soap congeal and harden.
- Oils used in soap making include coconut oil, olive oil, palm oil and vegetable oil. Coconut oil produces a soap that creates much lather.
- Butters can be added to the soap, which can turn the soap into a moisturizing soap that can keep the skin soft. These include cocoa butter and shea butter.
- Distilled water is added to the lye in the early stages of soap making. It reacts with the lye, creating heat in the reaction.
- Essential oils are added to the mixture to enhance the aroma of the soap. The most popular essential oils used in lye soap are lavender, rose and peppermint.














