Hair extensions—especially braiding hair and other add-in styles—are a staple of protective styling and a multibillion-dollar global industry. But new research is raising alarms that many extension ...

A new study published Feb. 11 in the American Chemical Society journal Environment & Health has found that synthetic and ...

A sweeping new study has uncovered a troubling mix of hazardous chemicals in popular hair extensions, including products made from human hair. Researchers detected dozens of substances linked to ...

The same chemicals found in pipes, pesticides and floor tiles are also present in some synthetic and human hair extensions, a ...