January 2008 in “Linchuang pifuke zazhi” Betamethasone activates and increases the growth of certain skin cells from hair follicles.
March 2007 in “International Journal of Cosmetic Science” Hair with more melanin resists weather damage better.
The 16th-century mummy's hair was well-preserved due to a calcium coating.
January 2004 in “Banca y finanzas: Revista profesional de gestión financiera” Androgens increase pigmentation in certain hamster skin areas, but estrogens can reverse this effect.
A white-tailed deer fawn in South Dakota was the first cervid found with congenital hypotrichosis, a condition causing sparse or missing hair.
January 2003 in “Linchuang pifuke zazhi” Melanin granules can be expelled by exocytosis.
January 1999 in “Journal of the European Academy of Dermatology and Venereology” RAPK is a rare skin disorder with pigmented spots, mainly on hands and feet, starting in youth.
January 1990 in “Springer eBooks” Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.
January 1989 in “Clinical and Experimental Dermatology” The symposium concluded that hair growth involves complex processes, including the hair follicle life cycle, the role of the dermal papilla, hair strength, pigmentation, and the impact of diseases and treatments like minoxidil on hair and skin.
Oral contraceptives can affect skin and hair, improve acne, but may cause pigmentation, dermatitis, and other conditions.
April 2022 in “DOAJ (DOAJ: Directory of Open Access Journals)” Polygonum multiflorum may treat hair loss by reducing inflammation and stress, and boosting melanin.
127 citations
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November 2010 in “Pigment cell & melanoma research” We need more research on human hair follicle pigmentation, not just mouse models.
82 citations
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January 1997 in “Forensic science international” Drugs can be incorporated into hair based on their chemical properties and hair pigmentation.
38 citations
,
June 2005 in “Acta Biochimica Polonica” Splenic eumelanin in C57BL/6 mice is different from hair eumelanin.
25 citations
,
October 2012 in “Dermatologic clinics” Laser and light treatments can effectively remove hair long-term.
3 citations
,
March 2008 in “Medical laser application” Lasers have become safer and more effective for treating skin problems and hair removal.
1 citations
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January 2009 in “Elsevier eBooks” Laser hair removal can be effective for darker skin but requires careful use to avoid side effects.
October 2025 in “International Journal of Research in Dermatology” New laser technologies and methods are safer and more effective for hair removal on darker skin tones.
January 2019 in “International Journal of Plant Animal and Environmental Sciences” The extract from marine green alga Chlamydomonas sp. W80 has antioxidant, anti-inflammatory, anti-aging, hair growth, immune-boosting, and skin lightening effects.
8 citations
,
June 2022 in “International Journal of Molecular Sciences” Tiny particles called extracellular vesicles show promise for skin improvement and anti-aging in facial care but face challenges like low production and lack of research.
3 citations
,
November 2022 in “Frontiers in Oncology” Melanin may help melanoma cells grow by aiding their metabolism.
53 citations
,
July 1981 in “Journal of Endocrinology” α-MSH and cyclic AMP boost melanin production, while cyclic GMP and melatonin reduce it.
7 citations
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January 1995 in “The Indian Journal of Animal Sciences” The Indian buffalo teat has a melanin-rich epidermis, no hair follicles, and a complex structure with muscle, blood vessels, and immune cells.
November 2025 in “Frontiers in Veterinary Science” A 1.0% tyrosine diet increases melanin in chicken feathers.
Human hair color is determined by melanin types and genetic factors.
1 citations
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June 2011 in “Journal of the Society of Cosmetic Scientists of Korea” The modified oriental prescriptions help hair growth and melanin production without irritating the skin.
April 2018 in “Journal of Investigative Dermatology” BMP signaling is important for skin color, affecting melanin production, pigment spread, and cell movement.
January 2006 in “Carl von Ossiezky University of Oldenburg” Unpigmented keratinocytes absorb substances faster, while melanocytes bind more strongly to melanin.
June 2008 in “British Journal of Dermatology” UK medical students lack dermatology education, liver biopsy patients with risk factors show more fibrosis, and certain fungi resist drugs due to melanin; genetics may influence female hair loss.
25 citations
,
August 2015 in “Molecules” Mimosine dipeptides are promising for treating hyperpigmentation and inflammation.