What is dry scalp ?
A sign of biological slowing down explained by a reduction in sebum production.
1 . SEBUM PROTECTS THE SCALP
Located in the dermis, the sebaceous glands produce sebum. After being excreted on the surface of the scalp, sebum combines with sweat to create the hydrolipid layer that protects the scalp and ensures elasticity of the hair.
2 . WITH AGE, THE AMOUNT OF SEBUM DECREASES
With age hormonal imbalances lead to a continual reduction in the amount of sebum produced.
The scalp is less protected and is prone to becoming dry. Similarly, the hair fibre is more vulnerable and less lubricated.
Thus the hair tends to become drier, lacking softness and shine.