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Skin and Color
In order to understand why discolorations or uneven color appear at
all, it is necessary to understand the process through which skin is
colored. There are three main factors which contribute to skin color.
Melanin is the most important factor that determines skin color. Then
there is carotene. Finally, blood vessels present in the skin cause
color. The presence of each of these factors, in greater or lesser
quantities, influences the color of the skin.
Thus, the more melanin that is produced by the melanocytes, the
darker the skin will be. If there is more carotene present in the body,
the more yellowish the skin will be. A great example to help with the
understanding of skin color is a suntan. The melanin’s role is to
prevent the UV rays of the sun from causing burns or damage to the
skin. When the skin is exposed to solar rays, more melanin is
produced to counterbalance its harmful effects. With time, the cells
containing more melanin than normal are pushed to the surface of the
skin where they are cast off.
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