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

The study suggests a link between varicella-zoster virus and segmental vitiligo, with evidence of the virus disrupting skin pigment cells.

Fetal hair follicles have melanocytes with melanosomes at different stages, which are broken down into pigment particles in keratinocytes.

Silencing certain circadian clock genes increases skin pigmentation.

Tailored nonsurgical cosmetic procedures are crucial for safely treating diverse skin types, especially skin of color.

Betamethasone activates and increases the growth of certain skin cells from hair follicles.

Amelanotic melanocytes from hair follicles are immature and likely don't transfer melanosomes to keratinocytes.

Hair color is determined by different melanins and changes with age.

Daily hair care may cause holes in hair fibers.

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.

Low-Level Light Therapy (LLLT) is a safe and effective method for skin rejuvenation, acne treatment, wound healing, body contouring, and hair growth, but more well-designed trials are needed for confirmation.

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.

Genetics, stress, and health issues can cause early hair greying, which affects self-esteem, and there's no cure, only hair dye.

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.

The skin's layers protect, sense, and regulate the body's internal balance, but can be prone to cancer.

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.

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

TRP channels in the skin are important for sensation and health, and targeting them could help treat skin disorders.