Question

Hair that is 90% cortex and 10% cuticle when compared to hair that is 60% cortex and 40% cuticle would be considered to be more:

a) elastic
b) resistant to relaxers
c) resistant to holding a set
d)resistant to holding a perm

Answer 1

Hair with a 90% cortex and 10% cuticle would be more elastic due to the cortex's role in providing strength and flexibility to the hair.

Step-by-step explanation:

Hair structure is predominantly made up of the cortex in hair, which is the middle layer, and the cuticle in hair, the outermost layer. The ratio of these layers affects hair properties. Hair that is 90% cortex and 10% cuticle, compared to hair that is 60% cortex and 40% cuticle, would generally be more elastic. The high cortex composition allows greater flexibility before breaking, as the cortex is responsible for the hair's strength and elasticity. Conversely, a higher proportion of cuticle makes hair more resistant to chemicals, as the cuticle acts as a protective barrier.