sodium lauryl sulfate

noun

sodium lau·​ryl sulfate -ˈlȯr-əl- 

-ˈlär-

: the crystalline sodium salt C₁₂H₂₅NaO₄S of sulfated lauryl alcohol

also : a mixture of sulfates of sodium consisting principally of this salt and used as a detergent, wetting agent, and emulsifying agent (as in toothpastes, ointments, and shampoos)

Examples of sodium lauryl sulfate in a Sentence

Recent Examples on the Web

Sulfates: Sulfates such as sodium lauryl sulfate (SLS) and sodium laureth sulfate (SLES) are commonly used as foaming agents in shampoos. —April Benshosan, Verywell Health, 9 May 2024

The surging demand for sulfate-free shampoo in recent years, for example, has meant a pivot away from brands using formulas with the ingredient sodium lauryl sulfate. —Beth Sobol, Allure, 23 Apr. 2024

People sensitive to sodium lauryl sulfate (SLS), another common ingredient in toothpaste, can produce canker sores and skin peeling inside the mouth when exposed to it for a prolonged time. —Popular Science, 14 Mar. 2024

Potential Irritants: Check to see if the toothpaste includes sodium lauryl sulfate (SLS). —Jessica Booth, Parents, 10 Mar. 2024

Word History

First Known Use

1885, in the meaning defined above

Medical Definition

sodium lauryl sulfate

noun

: the crystalline sodium salt C₁₂H₂₅NaO₄S of sulfated lauryl alcohol

also : a mixture of sulfates of sodium consisting principally of this salt and used as a detergent, wetting, and emulsifying agent (as in toothpastes, ointments, and shampoos)