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How does the sun tan our skin?

Apr 30, 2015 14:20 IST

    Q. How does the sun tan our skin?

    Ans. Tanning is the body's way of protecting skin from the deadly effects of sun’s harmful ultraviolet (UV) radiations. When UV radiations penetrate to the lower layers of the epidermis, then the melanocytes get triggered to produce brown pigments called melanin that act as the UV adsorbent and protect the skin from the deadly effects of these radiations. It is only the accumulation of these brown pigments that causes tanning.

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