The job of skin is protection of other organs and body parts against germs, infection, heat, cold and sunlight. Skin has three layers- Epidermis, Dermis, hypodermis. Dry skin results when protective oils in the stratum corneum are lost and the water that is normally present in the skin is allowed to escape. As the stratum corneum dires out it shrinks, causing small cracks which expose the underlying living cells to the environment.
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