GENERAL HISTOLOGY

Detailed explanation-1: -Melanin is a substance in your body that produces hair, eye and skin pigmentation. The more melanin you produce, the darker your eyes, hair and skin will be. The amount of melanin in your body depends on a few different factors, including genetics and how much sun exposure your ancestral population had.

Detailed explanation-2: -What is the function of melanin? Melanin gives color to the skin, hair, and iris of the eyes. Levels of melanin depend on race and amount of sunlight exposure. Sun exposure increases melanin production to protect the skin against harmful UV (ultraviolet) rays.

Detailed explanation-3: -Hyperpigmentation refers to skin that has turned darker than normal where the change that has occurred is unrelated to sun exposure. Cells called melanocytes located in the skin, produce melanin. Melanin gives the skin its color.

Detailed explanation-4: -Melanin is the pigment that imparts colour to the skin, hair and eyes. The dark-skinned people have more melanin in their skin than light-skinned people. It is a protein which is produced when the gene for melanin production on DNA, is activated.