Insights

Inside a strand: cuticle, cortex and medulla — and what “nourish” can mean on a dead fibre

Inside a strand: cuticle, cortex and medulla — ...

Hair is a dead fibre. Its three layers — cuticle, cortex and medulla — explain what “nourish,” “repair” and “reverse” can honestly mean.

Inside a strand: cuticle, cortex and medulla — ...

Hair is a dead fibre. Its three layers — cuticle, cortex and medulla — explain what “nourish,” “repair” and “reverse” can honestly mean.

Abstract image representing hair via a tree with roots visibly on the surface

How hair grows — and why it's dead by the time ...

For something we treat as surface, hair is a story of depth. Beneath the scalp, follicles build, colour, anchor, rest and release each strand on a schedule. Once you understand...

How hair grows — and why it's dead by the time ...

For something we treat as surface, hair is a story of depth. Beneath the scalp, follicles build, colour, anchor, rest and release each strand on a schedule. Once you understand...