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Soap Making Business
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Fixed Oils and Butters

In the world of natural cosmetics and soap, fixed oils, also called nonvolatile oils, are oils that do not evaporate when exposed to air. These oils are often used as the base ingredient for many different types of soap and cosmetic products. Fixed oils are sometimes referred to as carrier oils or base oils. The term butter is often used to refer to nonvolatile oils that are solid at room temperature.