What Does The Cuticle on Healthy Hair Look Like?

20/3/2013

HEALTHY Hair Cuticle

UNHEALTHY Hair Cuticle

A hair fibre is made of:

An outer layer, the cuticle
Under that lies the cortex
And at the core lies the medulla

The cuticle is actually made up of layer upon layer of shingle-like or scale-like overlapping cells. 5 to 12 layers make up the cuticle surface. These layers are not visible to the naked eye.

Features of The Hair Cuticle

Hard and transparent
Gives hair it's shine or glow
Gives hair mechanical strength

The Hair Cuticle and Defence

The cuticle is the first line of defence against damage from heat, excessive brushing and chemicals.

When the hair cuticle incurs damage the layers become irreversibly lifted - they no longer lie flat along the surface.

Damage From Hair Color and Relaxer

Part of the reason hair can easily get damaged when you color or relax it is that the cuticle layer has to be lifted to let in the colour (or the relaxer) and then flattened back. It's very easy to for the layer to be lifted and then for it to fail to flatten again.

Every day environmental forces such as harsh sun or wind can also wear the cuticle down.

So there it is; the difference between healthy and unhealthy hair is the cuticle.