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Melanocyte activity in hair follicles is linked to the hair growth cycle, being active in growth phases and inactive in rest phases.

Laser hair removal has advanced to effectively reduce hair for various skin types and hair colors.

Certain genes control the color of human hair by affecting pigment production.

The transgene likely activated an oncogene or interrupted a tumor suppressor gene, causing melanoma in mice.

Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.

We don't fully understand how sunlight damages different types of hair.

Vitiligo causes white skin patches and is linked to autoimmune issues.

Eating phenylthiocarbamide made all the rats' hair go gray, but some returned to their original color after stopping.

Applying a specific inhibitor lightens skin and hair color.

Blocking BACE1 and BACE2 enzymes causes hair color loss in mice.

Multiphoton microscopy is a promising tool for detailed skin imaging and could improve patient care if its challenges are addressed.

Melatonin affects mouse skin and may regulate skin functions.

Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.

Keratinocytes control how melanocytes work.

UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.

Darker hair in guinea pigs holds more codeine than lighter hair.

Other common signs, not just the well-known immune cells around hair bulbs, are important for diagnosing hair loss from alopecia areata.

Using a gene therapy with the Sonic Hedgehog gene helps mice regrow hair faster after losing it from chemotherapy.

Men's hair loss is caused by hormones and genes, and can be treated with medication and surgery, while graying is due to aging and has no prevention except dyeing.

The combination therapy significantly improved Riehl’s melanosis in patients without serious side effects.

Marie Antoinette syndrome causes sudden hair whitening, but its exact cause is unknown.

Laser therapy on darker skin has higher risks and needs expert handling.

Patient-derived melanocytes can potentially treat vitiligo by restoring skin pigmentation.

Reducing Tyrosinase prevents mature color pigment cells from forming in mouse hair.

Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.

Certain chemicals can change hair growth and color.

Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.

Cyclosporine A promotes hair growth and prolongs the active growth phase in human hair follicles, but may work differently than in rodents.

Butin is effective in treating vitiligo in mice.

EPR spectroscopy showed that spontaneous hair growth results in thicker skin and less pigmented hair than depilation-induced growth.