Not soaps at all but detergent cakes, combinations of chemicals with catalysts and trace elements. May contain petrochemicals, carcinogens, allergens. These are frequently irritating to sensitive skin.
Generally made from chemically extracted fatty acids reacted under high pressure to alkali. Extraction process introduces trace elements of synthetic chemicals as catalysts. These elements are not good for your skin.
Soaps made by reacting whole natural food quality fats and oils directly with an alkali. Trace elements being the vitamins, minerals, enzymes, and other nutrients present in the fats and oils used. Plus the natural glycerin that results from saponification, the basic soap making reaction. These natural trace elements are good for your skin.