The top layer of our skin (epidermis) produces a substance called melanin that gives your skin its normal color. The more melanin in the skin, the darker the skin appears and the more protection it provides against sun damage. Thus, certain ethnic groups such as South Asians, Latin Americans, and Middle-Easterners tend to have more melanin in their skin. Though people with medium or dark complexions naturally have more protection than do people with lighter complexions, they can still experience sun damage.
The normal production of melanin is increased in response to sun exposure to actually protect your skin against harmful Ultraviolet radiation. The more melanin is produced, the darker your skin gets. Since it is not always evenly produced, there are certain areas of the face that will get more pigment and eventually turn to sun or age spots as you get older. The areas most commonly exposed to the sun are your face, hands, arms, ears, upper back, and upper chest.
Thus the reason it is imperative to always use sunscreen of at least SPF 30 when going out into the sun. Read my past blog on how to protect your skin in the summer.Share