Skin whitening is the process by which people reduce the melanin pigment in the skin to give a whiter complexion. Those with dark complexion have more melanin and the quantity of melanin determines the colour of a persons skin. Melanin is manufactured by cells called melanocytes. The melanin quantity of persons skin depends upon the genetic buildup. The production of melanin is affected by exposure to the sun, the degree of damaged skin, and exposure to chemicals.
Often people take recourse to skin whitening methods to deal with problems such as freckles, age spots, scars, moles, acne, birthmarks and also by people who wish to have fair skin, especially those with a darker tone of skin.