The rarest hair color in the world is red.
While red hair is often associated with Ireland and Scotland, it's actually found in people of all ethnicities. It's caused by a recessive gene that produces a pigment called pheomelanin.
Only about 1-2% of the world's population has red hair, making it the rarest hair color. This means that only about 1 in 100 people have red hair.
Red hair is more common in certain regions of the world, such as Ireland, Scotland, and parts of Western Europe.
People with red hair often have freckles and pale skin, which are also linked to the same recessive gene.
