In this case study, we learn about Seventh Generation’s work to replace a common surfactant used in cleaning products, Sodium Laurel Ether Sulfate (SLES). Production of SLES generates the contaminant 1,4 dioxane, a probable human carcinogen, that is then transferred to products. Seventh Generation succeeded in replacing SLES with the non-ethoxylated surfactant Sodium Laurel Sulfate (SLS), which is not accompanied by the 1,4 dioxane contaminant. Seventh Generation’s efforts resulted in a better-performing product and maintained sales. After launch and continued public concern about 1,4 dioxane, competitors of Seventh Generation announced their own plans to reduce 1,4 dioxane in their products.