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Why does the sun lighten our hair, but darken our skin?
asked May 19, 2010 by triuser (13,156 points)

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The sun light actually can bleach and destroys the melanin in our hair that further makes it become lighter and the dead hair's colour stay in that colour until new hair grow. Furthermore, the sun light also destroys the melanin in our skin. Yet, since our skin is alive, therefore it responds to the sun's damage that further initiates the skin's cells make more melanin and our skin becomes darker.
answered Jul 26, 2010 by trianswer (334,515 points)