Melanin, the skin pigmentation, increases throughout the tanning process as a result of sunlight exposure. The skin is protected from sun damage in this way by the body naturally.
When exposed to intense sunshine, your body produces melanin just below the surface of your skin. This assists in absorbing UV radiation.
Therefore, the pigmentation increases and the tan gets darker the more UV radiation is exposed to the skin. The face, arms, hands, neck, feet, legs, and back are areas that are prone to tanning.
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