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Some patients with severe alopecia areata developed skin darkening from their treatment, which may indicate a less effective response to the therapy.

Hair color is determined by melanin types and gene activity.

Premature hair graying in the face may be influenced by genetics and environment.

Isolated patchy heterochromia with pili annulati can occur without other health issues.

Langerhans' cells are not involved in hair depigmentation in these mice.

VIP reduces hair pigmentation by decreasing melanin production.

Daily hair care may cause holes in hair fibers.

Human skin and hair color variation is mainly due to melanin produced by a few genes, with melanin protecting against sun damage.

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

Taking vitamin B6 corrected a pregnant woman's metabolic disorder, which changed her hair color.

The study found markers indicating that cells responsible for hair color are differentiating in specific areas of the hair follicle.

Melanocytes are crucial for skin pigmentation and can affect conditions like melanoma, vitiligo, and albinism, as well as hair color and hearing.

DPR can show different hair characteristics, as seen in two brothers with normal hair.

Intense pulsed light treatment mainly damages pigmented hair parts but spares stem cells, allowing hair to regrow.

Skin pigmentation varies due to genetics, UV exposure, and drugs, with treatments available but requiring medical advice.

Rac1 is crucial for normal hair structure and pigmentation.

Scalp micropigmentation is a process where tiny dots of pigment are tattooed onto the scalp to create the appearance of a shaved head or fuller hair.

Vitamin B12 deficiency can cause reversible hair color loss in children.

Rac1 is essential for proper hair structure and color.

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

Skin color may change how alopecia areata looks under a dermoscope.

Pigmented concealing powders can improve the look of hair density for people with hair loss but need daily application and may not work well in wet conditions.

The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.

Melanocytes can regenerate around hair follicles in bullous pemphigoid, especially in patients with darker skin.

Oral pigmentation can be a sign of Addison's disease.

Treatment with corticosteroids and zinc injections can help hair regrowth and restore pigmentation in alopecia totalis.

A 76-year-old man's grey hair turned back to its original color after radiotherapy.