What is the Biological Significance of Pheomelanin?
Pheomelanin has several biological functions beyond pigmentation. It provides some protection against UV radiation, though it is less effective than eumelanin. Interestingly, pheomelanin can generate free radicals when exposed to UV light, which may contribute to a higher risk of skin cancer in individuals with high pheomelanin levels. This dual role underscores the complex nature of pheomelanin in human biology.