Hair TextureUpdated 3 months ago

CORTEX 

The cortex is where the natural pigment, known as melanin, is located. This is what determines hair colour. Melanin can be broken into two types: Eumelanin (blue/brown) and pheomelanin (red/yellow). White hair or albino hair is depleted of melanin and does not appear to have a colour. 

MEDULLA 

This is the innermost part of the hair and surprisingly, there is no evidence that it has any part to play in the characteristics of the hair.  
It can be present in random breaks, or sometimes is not present at all. 

CUTICLE 

The cuticle layer is made up of flat, over lapping cells of keratin. The purpose of the cuticle layer is to cover and protect the delicate inside of the hair.  
The cuticle layer is transparent, and it is the cortex that determines hair colour.