The watchdogs at Organic Consumers Association (OCA) just announced a study that found 1,4-dioxane, a cancer causing contaminant released through the manufacturing process in numerous natural and organic soaps, shampoos, shower gels, and dish soap, including products made by Jason Natural, Alba, Kiss My Face, Seventh Generation, and Nature's Gate. These companies use Eythylene Oxide, a petrochemical to make harsh ingredients milder The process(called ethoxylation) generates 1,4- dioxane, which the skin absorbs all too easily. The story may have a happy ending, however the companies have taken the OCA's findings seriously and are looking for alternatives. As Lisa Lehndorff, a spokeswoman for Jason Natural and Alba, said, "reviewing the formulas is a top priority"
In the meantime, how do you know if your shampoo contains 1,4-dioxane? You won't find it on the ingredient label since the industry doesn't require by-products to be listed, but you can look for the USDA organic seal- ethoxylated products can't qualify for it. Or simply avoid any product with ingredients that have the following in their name; myreth,oleth,laureth,ceteareth( or any other eth) PEG's, polyethylene,polyethylene glycol, polyoxyethylene, or oxynol.