Human skin culture. View of a petri-dish culture of human skin seen growing on a metal grill. This method of culturing human skin results in the differentiation of keratinocytes & melanocytes, epithelial cells which produce keratin (fibrous protein) and melanin (the skin's pigment) respectively. Human skin cultures are made from a small piece of human skin (such as a biopsy sample). The outer epidermis is separated from the dermis layer underneath and keratinocytes are used to "seed" new growth. Synthetic skin's uses include treatment of severe burns, and in the testing of drugs & cosmetics. Photographed at the L'Oreal Laboratories, France.
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