Answer by Justin Dragna, Ph.D in Organic Chemistry, ... Thus, some people are concerned about using sodium laureth sulfate because of potential long term consequences from exposure to 1,4 dioxane.

Sodium lauryl sulfate (SLS) is found in shampoos, soaps, various beauty and cleaning products, and even some foods. Learn more about this chemical, such as how it works and whether it’s safe.

Sulfate-free shampoo is the good-for-your-hair option, the prevailing wisdom says, because it gives a gentler clean. The truth: Sulfates aren't all bad. Skip to main content ...