The chemical reaction of making soap, called saponification, is a complete process. During this reaction, the sodium hydroxide and oil molecules combine on a molecular level and are chemically changed into soap and glycerin. Properly done this reaction results in the sodium hydroxide being used up in the saponification process to turn the oil into soap. Here at Adam's Handmade Soap, we make sure that our ratios are done properly to not only ensure a proper soap bar but one that is of the highest quality. It is important to note that the act of sodium hydroxide and oil turning into soap is not something unique to us solely but is the case with all natural, cold-process soaps.