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

Hair color is not a risk factor for developing alopecia areata.

New treatments and drugs show promise for improving skin pigmentation and regeneration.

More melanoblasts in hair follicles mean better survival and proper hair pigmentation.

Valproic acid can cause dark lines on nails.

Skin pigmentation increases in CRPS-affected areas and improves with symptom relief.

Finasteride reduces melanin production, possibly treating hyperpigmentation and melanoma, but needs more safety research.

Light therapy is effective and safe for treating skin color disorders like vitiligo and dark spots.

Hair and nail disorders can cause changes in scalp pigmentation, especially with sun exposure and alopecia.

Melasma results from changes in the skin's pigment and structure, not just pigment cell growth.

Mouse melanocyte structure and function are influenced by genetics, hormones, and environmental factors.

Melatonin affects skin and hair color and protects skin cells, with potential benefits for hair growth and skin health.

A new method can detect mutations in mice by observing changes in hair follicle cells.

Pig skin is similar to human skin, with no major changes as they age.

Melatonin stops melanin production after tyrosinase action, with cyclic GMP mimicking this effect.

AMPK activation may reduce melanoma risk in red-haired individuals.

Vitiligo causes white skin patches but can be treated in many ways.

Melanocyte stem cells are vital for skin and hair color and have potential in treating skin disorders and cancer.

MITF and WNT3A are key in Dun Mongolian horse pigmentation.

Dark skin has stronger barriers and structure due to specific gene activity.

SCF and ET-1 together significantly increase skin pigmentation and melanin production.

Hair melanocytes help the skin respond to stress and regulate hair pigmentation.

Imatinib mesylate can cause skin lightening, especially in Chinese patients, due to its effect on pigment production.

Pigmented papules on the ear can be a rare skin condition called cutaneous amyloidosis, treatable with topical tretinoin.

TBX3 gene affects horse coat color, with higher expression in darker areas.

SPRY1 deficiency in skin cells causes stem cells to move to the skin surface, leading to increased pigmentation.

Oral zinc sulphate reduces dark hair color in mice.

Avoid hair dye after microneedling to prevent scalp pigmentation.

Minoxidil 5% caused skin discoloration in a man using it for hair loss.