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Beard cells, unlike scalp cells, produce growth factors in response to testosterone, which may explain differences in hair growth.

Epidermal growth factor disrupts hair and gland formation in bandicoots.

Children's hair grows in different types from before birth through puberty, with growth rates and characteristics varying by age, sex, and race.

Plucking hair speeds up the next hair growth, but hormones can change this timing.

Epidermal growth factor (EGF) boosts the growth of hair follicle cells.

Different skin conditions show distinct types of vessel inflammation, a new quality of life index for vulval disease is reliable, a certain intrauterine system might be linked to chronic vaginal yeast infections, and oral minoxidil reduces hair loss in women.

Dermal cell activity increases during hair growth in rats.

Scientists now better understand how human hair growth is controlled, including the roles of specific genes and proteins.

Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.

Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.

High levels of testosterone and dihydrotestosterone inhibit hair cell growth, while high levels of estradiol promote it.

Researchers created a lab model to study human hair growth, showing it can grow and self-regulate outside the body.

Cucurbitacin helps mice grow hair by blocking a protein that stops hair growth.

Illicium anisatum extract may boost hair growth.

Activating the Sonic hedgehog gene in mice can start the hair growth phase.

Mice with too much Claudin-6 have skin barrier problems and abnormal hair growth.

Testosterone and dihydrotestosterone slow hair cell growth, while estradiol has no effect.

Mouse skin glands need healthy nerves to grow properly during hair growth phases.

Testosterone increases hair follicle cell growth when beard or axillary skin cells are present together.

Vitamin C derivative helps hair grow longer by making cells produce a growth factor through a specific cellular pathway.

The protein SLC1A3 is important for activating skin stem cells and is necessary for normal hair and skin growth in mice.

Activin B can boost hair growth by promoting cell proliferation and cell cycle progression.

Lichen sclerosus et atrophicus is generally not considered precancerous, but there are exceptions.

Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.

Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.

Male sexual differentiation is regulated independently, while female differentiation occurs in an androgenic environment, affecting conditions like congenital adrenal hyperplasia.