Skin pigmentation in humans developed to basically manage the measure of bright radiation (UVR) infiltrating the skin, controlling its biochemical effects. A skin cell normally extends from 25-40 micrometers, contingent upon an assortment of components. As far as surface region, the skin is the second biggest organ in the human body within the small digestive tract is 15 to multiple times bigger. The normal human skin cell is around 30 micrometers in width, yet there are variations.