EA and EAS are extremely similar in the studied context, both in their use as surfactants in the tested products and their effect on the human body.
The harm done by EAS was previously established by these same researchers and referenced in the paper: "Our recent studies have demonstrated that exposure to anionic surfactants in laundry detergents impairs the epithelial barrier functions in human skin and bronchial epithelial cells even at very high dilutions."
