We Had No Idea This Is How Hair Dye Is Made

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Imaxtree

Ever since dyeing my hair for the first time earlier this year, I've wondered exactly how a little bottle of liquid could turn my formerly chestnut brown hair into a sun-kissed blond. I know how to use it and what it does, but I couldn't name the individual components or explain how they interact to accomplish the end goal. So, I decided it was time to do some digging.

Originally, hair color was made from natural dyes like henna, red ochre, indigo, and even turmeric. It wasn't until the founder of L'Oréal produced the very first synthetic hair dye all the way back in 1907 that things began to change. Nowadays, modern hair dye is expertly formulated and much more precise, with most brands using a combination of natural and synthetic dyes to achieve subtle differences in shade and tone. But what are these individual ingredients, and what do they do? Keep reading to learn the science behind hair dye!

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