A newly released study commissioned by the Organic Consumers Association (OCA), a watchdog group with over 500,000 members, and overseen by environmental health consumer advocate David Steinman (author of The Safe Shopper’s Bible), analyzes leading “natural” and “organic” brand shampoos, body washes, lotions and other personal care products for the presence of the undisclosed carcinogenic contaminant 1,4-Dioxane. A reputable third-party laboratory known for rigorous testing and chain-of-custody protocols, performed all testing.

http://www.organicconsumers.org/bodycare/DioxaneRelease08.cfm

And here are the products that were tested:
http://www.organicconsumers.org/bodycare/DioxaneResults08.cfm