The coexistence of red hairs in a black beard is a curious phenomenon that sparks questions about its cause, significance, and underlying mechanisms. To understand this, let's delve into the intricate world of hair pigmentation.
While hair color predominantly depends on melanin production, with eumelanin contributing to dark shades and pheomelanin to lighter ones, the presence of red hairs within a black beard signifies a disruption in this process. Historically, henna has been used as a natural hair dye to achieve reddish hues.