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Knot in human blonde hair
- Macroscopic Solutions
- Digital Images
- Online
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Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
You can use this work for any purpose, as long as it is not primarily intended for or directed to commercial advantage or monetary compensation. You should also provide attribution to the original work, source and licence.
Creative Commons Attribution Non-Commercial (CC BY-NC 4.0) terms and conditions https://creativecommons.org/licenses/by-nc/4.0
Credit: Knot in human blonde hair. Macroscopic Solutions. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
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Description
Photomacrograph of a knot in a single strand of blonde human hair. The hair shaft is made up of several layers of a tough protein called keratin. The outer layer (cuticle) is visible here and is made up of overlapping, tightly packed scales. Natural hair colour is determined by two types of melanin, pigments produced by melanocytes in the hair follicle. Eumelanin is black or brown in colour while phaeomelanin is red/yellow, and different proportions of these two pigments create the variety of shades of hair colour. Width of image is 1 cm.