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Premature graying of hair is increasing due to stress, genetics, and pollution.

BMP4 helps stem cells turn into pigment-producing cells, affecting hair color and growth.

Trichoscopy is a useful tool for diagnosing hair and scalp issues, but doctors must be careful to avoid mistakes.

Antigens from skin cells may cause hair loss in perinevoid alopecia.

Using Minoxidil for hair loss might cause eye problems, but it's not certain.

Isotretinoin shrinks sebaceous glands without affecting hair or skin color, unlike etretinate.

Some drugs can cause skin and hair color changes, often reversible when the drug is stopped.

A new mutation in the CDH3 gene causes hair loss and vision problems in a young girl.

Human epidermal neural crest stem cells can become bone and skin pigment cells, making them useful for therapies.

UV light can help stimulate the growth of new pigment cells from hair follicles in people with vitiligo.

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

Lasers are effective for some skin conditions but can cause side effects like scarring and pigment changes; careful selection is important, and botulinum toxin type A is successful in reducing sweat in palmar hyperhidrosis.

Red Sokoto goat fetuses develop firmer, pigmented skin with hair follicles as they grow.

Dermatoscopy and videodermatoscopy are useful for diagnosing and monitoring various skin, hair, and nail conditions.

Women with excessive hair growth often have hormonal issues and need medical advice and treatment.

Polydopamine is a safe, effective, and permanent hair dye that turns gray hair black in one hour.

Androgenetic alopecia is a common hair loss condition caused by testosterone effects on hair follicles, leading to thinner, shorter, and less pigmented hair, diagnosed using scalp dermoscopy and treated with topical minoxidil, antiandrogen agents, and 5-alpha reductase inhibitors.

Laser hair removal works well for light skin with dark hair but needs caution for darker skin.

Nevus comedonicus can sometimes grow terminal hair, challenging previous beliefs.

Intermediate hair follicles are a better model for studying hair growth and testing hair loss treatments.

Pregnant women often experience skin and hair changes, with over half getting stretch marks and pigment changes, and should be cautious with cosmetic procedures due to potential risks.

An 80-year-old woman with Cronkhite-Canada syndrome had multiple polyps and symptoms like diarrhea, hair loss, nail issues, and dark skin.

Cationic and nonionic surfactants provide better color intensity and resistance for semi-permanent hair dye than anionic surfactants.

A man's chest hair turned white after a shingles infection, possibly due to virus-damaged pigment cells.

Calendula Officinalis extract can be used to create an effective natural hair dye.

New hair after alopecia areata can be thinner and change color but usually keeps the same shape.

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

Innovative cosmetics could safely change hair color by targeting biological hair pigmentation processes.

The upper half of a human hair follicle can grow a new hair in a mouse, but success is rare.

A man with Woolly Hair Syndrome had very curly, fragile hair, and doctors used a special scalp examination to diagnose him without invasive tests.