MICROANATOMY

Detailed explanation-1: -Skin color is mainly determined by a pigment called melanin.

Detailed explanation-2: -Pheomelanin. This type of melanin pigments your lips, nipples and other pinkish parts of your body. People who have equal parts eumelanin and pheomelanin have red hair.

Detailed explanation-3: -The relative coloration of the skin depends of the amount of melanin produced by melanocytes in the stratum basale and taken up by keratinocytes. Melanin occurs in two primary forms. Eumelanin, the most common form of melanin, exists as black and brown, whereas pheomelanin provides a red color.

Detailed explanation-4: -The different colors present in human skin are caused by 4 chromophores: carotenoids, hemoglobin, melanin, and oxyhemoglobin. By absorbing unique light wavelengths and allowing red to be reflected, oxyhemoglobin and hemoglobin lead to the pinkish color of Caucasian skin.

Detailed explanation-5: -Haemoglobin is a molecule in the blood that carries oxygen and, by doing so, lends the skin a reddish-pink colour. Where the haemoglobin is not picking up enough oxygen from the lungs and carrying it around the body, the skin can appear blueish, sallow, or grey.