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

Protocatechuic acid can reduce melanin production and boost antioxidant activity in hair follicles.

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

A rare skin condition causes red and dark patches on the face and limbs.

Key genes influence melanin in chicken muscles, affecting their value.

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

Stressed fibroblasts greatly increase melanin production in hair, skin, and eye cells, mainly due to a growth factor called bFGF.

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

BMP signaling controls hair growth and skin color.

The study found increased skin pigmentation and variable melanocyte density in a patient with Addison's disease.

The conclusion is that Pigmented Epithelioid Melanocytoma can start from hair follicle stem cells or from a mole on the skin.

Injecting α-MSH made mice's hair turn black.

ATP increases melanin production in skin after UV exposure, with the P2X7 receptor being crucial for this process.

Exosomes from Pinctada martensii mucus can safely reduce melanin production, offering a new treatment for skin pigment issues.

Human dermal stem cells can become functional skin pigment cells.

The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.

POMC-derived peptides are important for skin functions like immune response and stress management.

Female goslings have darker feathers than males due to more melanin.

Genes like MC1R, TYR, MITF, ASIP, and KIT determine horse and donkey coat colors and affect breeding and health.

The PER3 rs772027021 SNP may cause mild skin pigmentation changes in a new subtype of dyschromatosis universalis hereditaria.

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

Endothelin-1 helps amelanotic melanocytes stick and move better on certain proteins.

Melanin-rich skin has unique challenges in diagnosing and treating skin diseases.

We need more research on human hair follicle pigmentation, not just mouse models.

Hormones can change ptarmigan feather color from white to pigmented.

The study found a specific pattern of uneven melanin distribution on balding scalps that could help understand skin diseases caused by light exposure.

PT-20 did not significantly improve gray hair repigmentation.

Oxygen levels affect hair growth and color cells differently when they interact directly.