Page 3 - LIVELY Education Technique Nov_2018

The Following is a Guideline for Educators to

follow when teaching, classes, salons and stylists.

Sources include H. S. A. S.p.a., and Daniel Estrada

HAIR STRUCTURE AND NATURAL HAIRCOLOR

 Hair consists of keratin (protein). The physical properties of natural of hair pigmentation
is defined by genetics. The innermost section of the hair is the medulla. The middle
section is known as the cortex. The cuticle is the outer layer of the hair shaft.
 The cuticle consists of a layer of flat cells, which are interlocked and form a more or less
protective membrane around the hair shaft. The cuticle has 4-8 overlaying cells.

 With grey hair these cells multiply.
 The single cells are connected by a sort of fibrous cement. This cement resists influences
from outside, but breaks down with chemical treatments. Healthy hair has a closed
cuticle layer which makes the hair look more shiny because there is more reflection in
ambient light.
 The cortex consists of keratin fibers, which are closely bound together. This where the
most important part (to us) of the hair is, the pigment. The medullas is the center part of
the hair. For years, chemists have been trying to understand the purpose of the medullas.

 The natural pigment is called melanin, which is produced in the matrix cells, found near
the hair root.
 Natural pigmentation is genetically defined.

 Melanocytes are found in the hair root, they are responsible for the making of melanin.
This is the natural pigment found in hair.

 White hair does not contain any natural pigments.

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