What Happens To The Hair
The hair cuticle is the outermost part of the hair shaft and is formed from dead cells. It is the hard layer that protects your hair shaft. When your hair becomes damaged the cuticle slowly wears away. This then exposes the cortex that is between the hair cuticle and the medulla (the thickest hair layer). This damage can cause hair breaking, split ends and visibly unhealthy hair.
How Chemicals Damage Your Hair
The causes of chemically damaged hair can usually be attributed to hair colouring, perms and hair relaxants.
Perms and relaxants change the shape of your hair. In order for this to happen the chemicals break down the disulphide bonds in your hair. Disulphide bonds is a strong bond that helps keep the protein structures of your hair held together. By breaking this down the hair can be manipulated into a new shape.
Hair colouring penetrates the hair cuticle in order to access the cortex that changes the colour of your hair (the cortex is between the hair cuticle and the medulla).
What To Do If Your Hair Is Damaged
Now you understand the causes of chemically damaged hair you may feel you want to improve the heath of your hair. Why not read our article, ‘The Best Shampoo for Damaged Hair'.
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