Is Hair Dye a Health Hazard?

In the mid-1800s, English chemist William Henry Perkin serendipitously synthesized the first non-natural dye: starting with coal tar, he was hoping to produce the malaria drug quinine but instead created mauve. His discovery revolutionized the textile industry and launched the petrochemical industry. Natural dyes just didn't have the staying power and vivid colors of the dye Perkin created. Never before had such a steadfast dye been found. Soon after, August Hofmann (Perkin's chemistry prof