Neuromelanin, eumelanin, pheomelanin changes

The main reason why a person's skin color is fair or dark is genetics and the amount of a pigment called melanin. Amount and type of melanin • Melanin is the main substance that determines the color of the skin, hair, and eyes. • The more melanin, the darker the skin. • The less melanin, the fairer the skin. The three main types of melanin 1. Eumelanin: Gives the skin and hair a brown or black color. 2. Pheomelanin: Gives the skin a reddish or yellowish tint and makes it fair. Too much pheomelanin sometimes increases the risk of skin cancer due to low UV resistance. 3. Neuromelanin: It is mainly found in the brain, has no direct relationship with skin color. However, the body is light brown or dark brown to black in color. 2. Hormonal and health factors • Some hormonal problems, such as Addison's disease or hyperpigmentation, can darken the skin color. • In some cases, skin diseases or long-term m...