This photo shows a 6-year-old boy riding on a camel to solicit tourists in Petra, Jordan. You can see KOHL was applied around his eyes. KOHL is a natural black powder, usually antimony sulfide or lead sulfide, used as a natural eyeliner in the Middle East since ancient times. Ancient Arabs applied it around their eyes, largely to keep their eyes clean and away from eye infections. Most importantly, KOHL protects the eyes from the heat of the desert.
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CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>