A new study reveals that teenage girls who switched cosmetics for three days showed drops in chemical levels in their bodies. Researchers from UC Berkeley and Clinica de Salud del Valle de Salinas found that when girls switched cosmetics, shampoos and lotions that had "hormone disruptors" to those that did not, they had a 25-45 percent drop in their chemical levels. The study looked at chemicals like phthalates and parabens, which are found in nail polish and makeup.
Kim Harley, associate director for health effects at UC Berkeley's Center for Environmental Research and Children's Health
Maritza Cardenas, UC Berkeley undergraduate and study participant/author
Nneka Leiba, deputy director of research at Environmental Working Group