One of humanity's oldest and simplest products, soap is made by saponifying oils with alkali, with no waste generated. The alkali is either sodium (for bars) or potassium (for liquids) hydroxide, made by running electricity through salt water, no alkali remains in our superb soaps. All glycerin is retained. Our unique Old World Formula = High Lather Cleansing and Smooth, Mild Afterfeel. (via VitaCost.com)