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The Wnt/β-catenin pathway can activate melanocyte stem cells and may help regenerate hair follicles.

Facial dark spots can be caused by the sun, genetics, makeup, or medicine, and are diagnosed by patient history and skin tests.

Oral zinc sulphate reduces dark hair color in mice.

The document concludes that immune system abnormalities cause alopecia areata, but the exact process is still not completely understood.

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

Topical tretinoin may increase beard hair density.

Some patients' hair grew back black and white after chemotherapy.

A KRT71 mutation in Hereford cattle in Uruguay causes thin, curly hair and scaly skin.

People with premature hair graying have an imbalance between harmful and protective molecules in their body, hinting that antioxidants might help.

Proteins like aPKC and PDGF-AA, substances like adenosine and ATP, and adipose-derived stem cells all play important roles in hair growth and health, and could potentially be used to treat hair loss and skin conditions.

Vitiligo is a skin condition causing white spots, more common in women, often starts before age 20, and can affect mental health.

Chemotherapy can cause various skin reactions, with hair loss being the most common, and proper diagnosis and treatment of these reactions are important.

Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.

Hair color production in mice is closely linked to the hair growth phase and may also influence hair growth itself.

Chemotherapy can cause skin problems like hair loss, mouth sores, and skin darkening, and recognizing these can affect treatment decisions.

Latanoprost can make eyelashes longer, thicker, and darker.

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

Oxidative stress contributes to hair graying and loss as we age.

Melatonin helps regulate hair growth and protects the hair follicle from stress.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.

Skin can be cooled quickly and safely during laser treatments to protect it without affecting deeper layers.

Both vitiligo and alopecia areata involve an immune response triggered by stress and specific genes, with treatments targeting this pathway showing potential.

Hair color loss can indicate the effectiveness of a drug targeting the KIT protein in mice and humans.

TRH stimulates human hair growth and extends the hair growth phase.

Human hair follicles can regenerate after removal, but with low success rate.

Stress can worsen skin conditions by affecting hormone levels and immune response.

Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.

Melanocyte development from neural crest cells is complex and influenced by many factors, and better understanding could help treat skin disorders.

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