The DHT in turn causes follicles to sprout shorter and finer hairs before eventually dying out. It also causes the growth phases of hair follicles to become shorter, and the rest phases to be longer.

Though commonly called a “hair follicle test,” this drug test only tests clipped strands of hair, not the follicle located under the scalp. During this test, a small amount of hair is removed ...

Researchers have grown hair follicles from mouse pluripotent stem cell lines for the first time. Until now, hair follicles could only be grown in vitro using primary cells isolated from embryonic skin ...

Hair is made of a protein called keratin that is produced in hair follicles in the outer layer of skin. As follicles produce new hair cells, old cells are being pushed out through the surface of ...

Pili multigemini, also known as compound hairs, is when a hair seems to have Siamese-twinned itself, and now two hairs (or even several more) grow from one single follicle. “The exact cause is ...