Finally, in 2001, the Institute of Toxicology in Zurich, Switzerland, published research results flatly stating that methoxycinnamate, oxybenzone, and benzophenone, agents commonly found in commercial sunscreens, were in fact endocrine disruptors—chemicals that interfere with the bodys delicate hormonal balance. In short, the sunscreens hed been using for years werent safe after all.