Between a rock and a plastic place

There has been an increase in the cynical marketing of plastic products that are free of BPA (bisphenol A) on the back of safety concerns regarding this plastic additive. However, the demand for products with specific properties that were endowed on them by BPA remains and so alternatives, including bisphenol S, BPS, are now being used widely. New research from UCLA, University of California at Los Angeles, into the safety of BPS, however, suggests that it can accelerate embryonic development and disrupt the reproductive system. "Our study [on zebrafish] shows that making plastic products with BPA alternatives does not necessarily leave them safer," explains senior author of the study Nancy Wayne, a reproductive endocrinologist and professor of physiology.