January 2015 in “Zhongguo haiyang yaowu” Collagen from puffer skin may help whiten skin and slow aging without harm.
Retinoids can help treat skin pigmentation disorders by affecting melanin production.
January 2014 in “한국미용학회지” UV-A radiation significantly damages semi-permanent dyed hair.
Adenophora Radix extract can promote hair growth and increase melanin in mice.
January 2013 in “วารสารเภสัชศาสตร์อีสาน (Isan Journal of Pharmaceutical Sciences, IJPS)” Safflower extract increases melanin production in certain skin cells without harming them.
Ginseng extract promoted hair growth in mice and improved local blood flow.
January 2013 in “Liaoning Zhongyiyao Daxue xuebao” Fresh ginger promotes hair growth in mice.
September 2012 in “British Small Animal Veterinary Association eBooks” The document concludes that pigmentation disorders in animals involve complex interactions between melanocytes and keratinocytes.
April 2012 in “J. Willard Marriott Library” Cannabinoids like THC and THCA get into hair through skin oils, not hair color.
Ethnic differences in skin and hair affect penetration minimally, but cultural habits matter in product development.
November 2011 in “Journal of Investigative Dermatology” TRH in hair follicles can influence hair color by increasing melanin.
Prunus Tomentosa extract is effective in promoting hair growth, similar to minoxidil.
February 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Fluphenazine and iloprost can induce hair growth.
January 2010 in “Chinese Journal of Aesthetic Medicine” Melasma skin has more melanin and signs of aging, with strong CK10 expression linked to cell differentiation and aging.
January 2010 in “Pharmacy Today” Collagen reduces skin melanin, boosts antioxidants, and improves skin moisture.
March 2009 in “Chinese Journal of Dermatology” Melanocytes in the outer root sheath are likely stem cells that grow fast but stay immature.
January 2009 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Lasers and light treatments are now the most common ways to remove hair.
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.
February 2005 in “CRC Press eBooks” Hair color is due to active pigment cells in hair during growth.
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.
April 1986 in “CRC Press eBooks” Hair color is determined by melanins produced in hair cells.
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.