Superfatting is a term used in soap making that refers to the process of adding extra moisturizing oils and butters to a soap recipe, creating a more emollient and nourishing final product. There are a variety of synonyms that can describe this process, including overfattening, lye discounting, and superfat modification. Additionally, soapers may use alternative terminology such as unsaponified oils, residual oil content, or excess oils and fats. No matter the wording, superfatting is a crucial step in creating high-quality soap, ensuring that the end result is both effective in cleansing and nourishing the skin.