From rainbow to gray: The evolution of hair dye

“Throughout history, the status of our hair has served as an instant visual cue for value judgment,” said Caterina Gentili, PhD candidate at the Centre for Appearance Research in England, in a phone interview. “One of the many ways for society to objectify female bodies, and deem them worthy, or not, of attention.”In recent decades,Gentili said “hair color products have become a key tool for women to stay visible, and shield them from one of the biggest stigmas placed on them: aging.”

By Marianna Cerini, CNN