Hair follicles also play a part in determining the color of your hair. As with skin, your hair gets its pigment from the presence of melanin. There are two types of melanin: eumelanin and pheomelanin.

Part One of a two part series discussing the structure and function of hair follicles, diagnostic approach to diseases causing hair loss, and the most commonly occurring nonscarring alopecias.

During anagen, the hair follicle will produce a new shaft–the part of the follicle that pokes above the skin. “The anagen phase, where hair actively grows, is significantly longer for head ...

That’s the part of a hair that’s inside the follicle. The hair bulb is at the bottom of the hair root. It’s connected to nerves and blood vessels under the skin.

What's new about this research, the NYU team said, is that as hair ages, sheds and grows back, melanocyte stem cells get stuck in a part of the hair follicle called the hair follicle bulge.

These cells are part of the hair follicle and regulate hair growth. Another study showed that stinging nettle is rich in a plant chemical called beta-sitosterol, which raises growth factors that ...

They found the number of hair follicles with melanocyte skin cells in a certain part of the hair follicle, known as the hair follicle bulge, increased from 15% before plucking to approximately 50% ...

Red arrows indicate the hair follicles (HFs), and black asterisks indicate the cartilaginous parts. b and c) Representative hematoxylin and eosin (H&E) staining images, from the same SKOs shown in ...