Steareth-2
Other names: PEG-2 Stearyl Ether
Harm score: 4 (Slightly harmful chemistry)
Steareth-2, alternative names PEG-2 Stearyl Ether, is commonly used in the cosmetic industry. It is a synthetic ingredient that is a derivative of stearic acid, a fat commonly found in plants and animals. It is an emulsifier, a substance that facilitates the mixing of two or more ingredients that do not normally mix well, such as water and oil.
In the range of products where this emulsifier can be found are mainly cosmetic and cleansing products. Steareth-2 is often included in the formulation of shampoos, shower gels, soaps, body creams or skin lotions. It is also contained in some deodorants and wax depilatories. Thanks to its stabilising function, it ensures that the final product has the appropriate consistency and properties. However, it is also used to a greater extent in cosmetic products for its emollient properties, which improves the skin after the application of the cosmetic product.