Some popular synthetic hair products used for braids, twists and extensions may contain cancer-causing chemicals and high levels of lead.

The recent lead contamination problem in Flint, Mich., was not the first time there has been a severe public health issue caused by a tainted water supply. As recently as February 2016, officials in ...

"We not only efficiently replicated a complex natural product," says Mingji Dai, Emory professor of chemistry. "We also improved upon it by turning it into a more potent compound." The Journal of ...