A new study published Feb. 11 in the American Chemical Society journal Environment & Health has found that synthetic and human hair extensions, popular among Black communities, contain more chemicals ...

Mathematics provides tools for explanation and analysis in the physical, engineering, business and social sciences. These tools can help in areas as diverse as planning and evaluating market research, ...

Experts say the findings mean more potential risks for Black women, who may also be exposed to harmful chemicals in relaxers and straighteners. A new study found popular hair extension products, ...