Knobloch’s Kemal-4 is a relaxer, skin-prep, detergent-type degreaser, and cleaner all in one. It is concentrated and safe to use. Kemal-4 can be used in all soak solutions. Not only does it prepare the skin to accept tanning, but it also relaxes the skin for easier shaving. This product softens skins, such as African and grease-burned skins. It will not cause hair slippage like ordinary soaps because of its low pH. Kemal-4 is about ten times stronger than most dish detergents.