A plant-based hair dye that smells like cinnamon (IMAGE)

American Chemical Society

A plant-based hair dye that smells like cinnamon

Caption

Bleached human hair strands (left) were soaked in different amounts of a new plant-based coloring treatment, and they turned black-purple, smelled pleasant, and deterred microbial growth.

Credit

Adapted from ACS Sustainable Chemistry & Engineering 2026, DOI: 10.1021/acssuschemeng.6c08090

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