DAVID SCHARF / SCIENCE PHOTO LIBRARY DAVID SCHARF / SCIENCE PHOTO LIBRARY
False-colour scanning electron micrograph (SEM) of a single human hair, showing its cut end. Hair consists largely of keratin. In this image, the suface of the hair shaft displays the overlapping keratin plates, or scales, that are believed to reduce hair matting. Magnification: x400 at 35mm size.
Model release not required. Property release not required.