Not only body wash, but almost all lotions, creams, and makeup products contain parabens. If you go to your bathroom right now and check the ingredient list on the bottles (they are usually on paper boxes on makeup products or expensive skin care products) on all your cosmetic products you will find that they are everywhere. In fact, most use 2 or more kinds of parabens.
I am allergic to parabens so there are very few products I can use. Now I think I am lucky!