Holi is a festival of joy, togetherness, and vibrant colours. However, the synthetic colours commonly used during ...

Black and Hispanic hairdressers are exposed to a complex mixture of chemicals, many of them unknown, potentially hazardous, and undisclosed on product labels, Johns Hopkins University researchers ...

Introduction : colors, natural and synthetic, in the ancient world -- Discovery of the physics of color -- The chemical causes of color -- Colorant usage from antiquity to the Perkin era -- Beyond ...