You like redheads? Here’s some science for you about redheads.
There are two types of melanin. Eumelanin gives black and brown colorations. . Pheomelanin gives red and yellow colorations. The two types of melanin are produced by entirely different genes. When people who spent most of their history in northern climates lost their ability to produce melanin, they COMPLETELY lost the gene responsible for producing it. Another gene responsible for pheomelanin appeared.
The two genes were not shared anywhere in the world for a long as a time until people started traveling and making admixtures. Today many people have both genes and both types.
But not all. Blue eyed blinds and redheads have no melanin just pheomelanin.
An absence of all melanin produces albinism
A supersaturation of melanin produces a very dark individual.
While a supersaturation of pheomelanin produces a ginger.