All races have melanin have melanin, some race might have more melanin than others due to biological origin or other reasons, but melanin carbon is in every living things. The degree of available melanin is what is deferent and differs vary for each races. For example, the race with the highest carbon melanin content is Black Africans. The race with the least melanin content is Caucasian people. Read the article "Difference starts with melanin" for more details on the classification of melanin of different races.