Sodium laureth sulfate (SLES), an accepted contraction of sodium lauryl ether sulfate (SLES), is an anionic detergent and surfactant found in many personal care products such as soap, shampoo, toothpaste. SLES is an affordable and very effective foaming agent. SLES, sodium lauryl sulfate (SLS), ammonium lauryl sulfate (ALS), and sodium pareth sulfate are surfactants used in many cosmetic products for their cleansing and emulsifying properties. It is obtained from palm kernel oil or coconut oil. It is a water-soluble substance that has the same boiling point as water. It is also soluble in methyl and ethyl alcohol.
Its chemical formula is CH3 (CH2)11(OCH2CH2)nOSO3Na. Sometimes the number represented by n is indicated in the name, for example laureth-2 sulfate. The product is heterogeneous in the number of ethoxyl groups; where n is the mean. Laureth-3 sulfate is common in commercial products. It is commercially sold in 30% and 70% concentrations. The concentration ratio to be obtained is determined depending on the need in line with the usage area.
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