Fatty acids as raw materials for cosmetics There are many kinds, such as lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oil, etc.
The following is a brief introduction to the four commonly used fatty acids:
Lauric acid is a white crystalline waxy solid. In cosmetics, lauric acid is generally neutralized with sodium hydroxide, potassium hydroxide or triethanolamine to form soap, which is used as an emulsifier and dispersant in the manufacture of cosmetics. It has good foaming properties and stable foam, and is mainly used in shampoo, facial cleanser, shaving cream and other products.
Myristic acid is a white to yellowish-white hard solid, sometimes a shiny crystalline solid, or a white to yellowish-white powder. odor. It is used as a raw material for soaps, detergents, cosmetic surfactants and chemical fiber oils; it is used to manufacture emulsifiers, waterproofing agents, curing agents, polyvinyl chloride heat stabilizers and plasticizers, etc. It is also a raw material for spices and medicines.
Palmitic acid is a white, pearlescent phosphorus flake. Raw materials for creams, lotions, surfactants, and oils. This product has a special aroma and taste. According to my country’s GB2760-89 regulations, it can be used to prepare various edible spices and is also used as a raw material for defoaming agents and other food additives. Mixing palmitic acid and stearic acid at a ratio of 45% to 55% can produce crystallized stearic acid products, which can be used in the cosmetics industry.
Stearic acid is a white flake, bead or block solid at room temperature. In the cosmetics industry, stearic acid is an indispensable raw material for the manufacture of general emulsified products. It is used to prepare creams, cold creams, foundation creams, shaving creams, hair lotions and skin care lotions. Among them, it plays an emulsifying role in two types of skin care products: snow cream and cold cream, turning it into a stable and white paste.
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