Magnesium Laureth Sulfate
Magnesium Laureth Sulfate

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In the European Union, each compound used in the cosmetics industry has a specially assigned unique name assigned by the INCI system. The system also obligates the manufacturer to select names in the chemical composition of cosmetics, listing those with the highest concentration as first.

General characteristics

Magnesium laureth sulfate belongs to the family of alkyl ether sulfates. From a chemical point of view, it is a semi-synthetic substance as it is derived from the fatty ether of lauryl alcohol, polyethylene glycol (PEG) and magnesium sulfate. The ether itself is of plant origin, most often from coconut oil. The first important feature of this substance is its good solubility in water. Polyethylene (oxydodecyl) magnesium sulfate has the following CAS number: 62755-21-9. It is an individual number assigned to a substance by a US organization that uniquely identifies the compound.

Applications in cosmetic products

In the cosmetics industry, Magnesium laureth sulfate is used in many products which use its benefits.  In products, it usually acts as a washing substance, surfactant or a foaming agent. This component degreases surfaces very well and ensures good cleaning. Thus, this alkyl ether sulphate can be found on the label of products such as all kinds of liquid soaps, make-up removers, bath preparations, specialized shampoos (e.g. anti-dandruff or shampoos for coloured hair), children’s care products and intimate hygiene preparations.

Safety of products containing Magnesium laureth sulfate

Polyethylene (oxydodecyl) magnesium sulfate is a safe product. There is no information in the regulations about its negative impact on the environment. On the other hand, Magnesium laureth sulfate may cause skin dryness and irritate the eyes and all mucous membranes. Consequently, it is not recommended to use cosmetics containing high concentrations on damaged skin. Moreover, the use of this substance in oral care products is not recommended. The compound is not considered as allergenic, and any skin effects may be related to the individual skin conditions. In the technology of the cosmetics industry, it is a substance used in production always with amphoteric compounds, which reduce the risks.