The hair lifecycle

Beneath the skin, the hair grows from the follicle or root. The blood vessels at the base hair deliver the nutrition and nourishment required for the hair.

Understanding the Phases of Hair

Each hair passes through four distinct stages and not all hairs are at the same stage of the lifecycle.

Hair Structure

The Hair has two major components which can be understood as below:

Hair Shaft

The hair shaft is the portion that is above the epidermis and it comprises of three parts: the cuticle, cortex, and medulla.

The Hair Root

It is the portion of hair which is beneath the surface of the scalp and works with the dermal papilla, hair bulb, arrector pili, sebaceous or oil gland and follicle in the formation of hair.