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Different types of inactive melanocyte stem cells exist with unique characteristics and potential to develop into other cells.

UV radiation causes significant protein loss and color changes in hair, especially blond hair.

Hair color is influenced by genetics and can indicate certain health conditions.

As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.

Women of color in Northern Manhattan view hair care as important to their identity and culture, and education on harmful chemicals in hair products is needed.

Some skin problems can be signs of diabetes or other metabolic diseases and recognizing them can help diagnose and treat these diseases early.

Hair greying is seen as a sign of aging; temporary fixes like hair dye are used, but a balanced diet and hair care can help manage it.

Pregnancy can cause normal skin changes that usually go away after childbirth and don't need treatment.

The article concludes that advancements in hair cosmetics require dermatologists to stay informed about products and their potential risks, including allergies and higher risks for hairdressers.

Crossbreeding improves goat fiber quality, and specific genes affect hair traits and color.

Selenium can be toxic to animals, causing serious health issues, especially in horses.

Hairlessness in mammals is due to complex genetic changes in both genes and regulatory regions.

Thyroid hormone affects skin health, with too little causing rough, pale skin and too much leading to smooth, thin skin, and may also impact wound healing and skin conditions.

Rac1 is essential for proper hair structure and color.

Removing Dicer from pigment cells in newborn mice causes early hair graying and changes in cell migration molecules.

Hair aging is caused by stress, hormones, inflammation, and DNA damage affecting hair growth and color.

Biotin supplementation during isotretinoin treatment for acne may help maintain skin hydration and improve hair growth.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

c-kit affects hair growth and color in alopecia areata and androgenetic alopecia.

Low-level laser treatment helps mice grow hair by increasing certain protein levels linked to hair growth.

Hairless mammals have genetic changes in both their protein-coding and regulatory sequences related to hair.

Environmental factors at different levels control hair stem cell activity, which could lead to new hair growth and alopecia treatments.

The dietary supplement significantly improved skin, nails, and hair in older adults.

Reflectance spectroscopy can noninvasively track hair growth stages by measuring skin reflectance and melanin changes.

Gamma-rays exposure during the resting phase of hair growth can damage hair regeneration and color in mice.

Gamma rays did not change hair follicle density but increased white and hypopigmented hairs in mice.

Trichoscopy is useful for diagnosing hair and scalp disorders in people with darker skin.

Hormones and neuroendocrine factors control hair growth and color, and more research could lead to new hair treatment options.

Chinese women's hair gets thinner and grayer with age, and scalp conditions change, especially after 40.

The 830-nm wavelength was most effective at promoting hair growth in rats using low-level laser therapy.