POWER AND SYRED / SCIENCE PHOTO LIBRARY POWER AND SYRED / SCIENCE PHOTO LIBRARY
Sunburnt skin. Coloured electron micrograph (SEM) of epidermal skin cells after sunburn. These stratified epithelial cells have been destroyed by ultraviolet (UV) light in the sun's ray and are sloughing off. UV radiation also damages the tiny blood vessels beneath the epidermis. Sunburn is most common in fair-skinned people, whose skin lacks the protective pigment melanin. Repeated exposure prematurely ages the skin and increases the risk of skin cancer. Calamine lotion and painkillers help to soothe sunburnt skin. Magnification: x300 at 6x7cm size.
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