Differences in Hair Ageing Around the World

Hair greying: ethnic and geographical differences

The Eumelanin content of hair of different ethnic origins changes with age

Hair fibre fragility

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©L’Oréal Research
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Montage of images taken
using Scanning Electron
Microscope:
kinky hair, close-up of
scales removed by rubbing
The hair breaks at the areas
of torsion. ©L’Oréal Research

Study of ageing in natural, untreated hair

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Broken cuticle
Hair fibre cross-section
Cuticle and cortex seen
under Transmission
Electron Microscope. ©L’Oréal Research
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Scanning electron microscopy image.
left: hair fibre towards
the root (in good condition),
right: hair fibre towards
the tip (damaged). ©L’Oréal Research

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