The Cortex

The middle layer of the hair. A fibrous protein core formed by elongated cells containing melanin to pigment. Gives hair majority of its strength and elasticity. A healthy Cortex contributes to %80 to the overall strength of the hair. Contains melanin that determines hair color.







The Medulla

The innermost layer of hair. Sometimes absent from hair and doesn't play a role in hair coloring. composed of round cells.







Texture

The diameter of an individual hair.







Densi...
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