response: That is something I also can't answer. If it helps, I know that there are natural dyes from plant sources
original_response: They likely used Natural dyes, which can be from vegetables and plant sources like roots, bark, leaves, berries and wood. You can also find dyes in fungi and lichens!
history: I love to color my hair. I recently colored it purple. How interesting! Did you do it yourself or did you go to a professional? I did it myself at home. Do you have any advice on how to maintain it? I don't have any advice. What I can tell you is that in 2011 alone, at-home coloring in the US reached 1.9 billion dollars. Wow, that's a lot of money. It can be stressful dying your hair by yourself. I wonder how they dyed it in ancient times.
knowledge: The majority of natural dyes are vegetable dyes from plant sources—roots, berries, bark, leaves, and wood—and other biological sources such as fungi and lichens.