Liquid soap is produced using two methods. The first method is as follows: prime animal or vegetable fats are mixed with potassium alkali in order to produce potassium salts of higher fatty acids. Unlike sodium salts of higher fatty acids used to produce solid toilet soap or household soap, the potassium salts of the fats have a liquid form. Nowadays, liquid soap made of potassium salts of fatty acids takes only 0.03% of the liquid soap market and only in the highest luxury segment.
The second method to produce liquid soap is to use sodium dodecyl sulfate or sodium lauryl sulfate as an agent. Fundamental colloidal chemistry shows that in the process of saponification the critical concentration of micelle formation for surfactants, which are soaps, diphilic substances with a short hydrocarbon chain, and dodecyl sulfate and lauryl sulfate are 1.5-2 times shorter than natural fats, form micelles much earlier than micelles from fatty salts with a long chain of hydrocarbons. Consequently, the process of purification is much more effective if salts of fats with a long hydrocarbon chain are used, the best sources of which are palm and coconut oils.
Moreover, a large number of articles appeared in modern sources with the highest impact factor and the citation index concerning the hazards of sulfate salts of fatty acids, which weaken the immunity at the cellular level and reduce significantly the active role of antibiotics.
Reference: SULU soap is made only in a solid form, based on natural vegetable oils, with the addition of natural plant extracts. Learn the composition of the soap on the label and decide what kind of soap suits you.
The choice is yours!