What is keratin?

We’ve all heard of keratin, this natural protein made up of 97% of the hair’s raw material and amino acids, which requires zinc and B6 vitamins for its transport to the root. Keratin is made up of three distinct layers: the first being the cuticle that protects the hair, the second the cortex, which provides elasticity, and the third, the marrow. Very trendy and in tune with the times, keratin treatments have the role of ensuring sheathing, hydration and elasticity of the hair