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Melanin
Melanin is the natural substance that gives color (pigment) to hair, skin, and the iris.
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Update Date:
October 18, 2008
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
