Soap making is a complex process that makes use of various ingredients. To make the soap, the chief ingredient glycerin is derived by blending fat and lye together. The blending process is called transesterification and it leaves glycerin as a byproduct. The glycerin so obtained is in crude form and it requires filtration to use it as a soap base. The base along with various ingredients are then used to make a soap. The chief ingredients are lye, alcohol, sugar, moisturizers like cocoa butter, essential oils, dyes and herbs, and of course, glycerin.