For being the world’s oldest known synthetic pigment, the original recipes for Egyptian blue remain a mystery. The ...

A team of Washington State University-led researchers has recreated the world's oldest synthetic pigment, called Egyptian ...

Hydrangeas are coveted for their large, showy blooms and ability to change color depending on the pH of the soil.

In alignment with the FDA’s aim to phase out petroleum-based dyes, the agency has approved three color additives from natural ...