17 citations
,
May 2007 in “Forensic Science Medicine and Pathology” Clozapine levels in hair reflect dosage and bind more to pigmented hair.
11 citations
,
September 2024 in “Journal of the European Academy of Dermatology and Venereology” Hair regrows faster in alopecia areata than skin re-pigments in vitiligo due to differences in stem cells and treatment effects.
8 citations
,
January 2018 in “European journal of dermatology/EJD. European journal of dermatology” The girl's regrown brown hair had less of certain pigments than her original black hair.
8 citations
,
January 2017 in “Stem Cells International” A protein called sFRP4 from skin cells stops the development of pigment-producing cells in hair.
1 citations
,
January 2021 in “Processes” Researchers successfully grew horse skin cells that produce pigment from hair follicle samples.
November 2025 in “EXPERIMENTAL ANIMALS” Stingless bee propolis may help regenerate hair follicles and improve pigment function in chemotherapy-induced hair loss.
September 2024 in “Digital Commons - University of South Florida (University of South Florida)” Hormones can change ptarmigan feather color from white to pigmented.
January 2006 in “Yearbook of Dermatology and Dermatologic Surgery” Hair graying is caused by the loss of pigment cells due to poor maintenance of stem cells in the hair follicle.
81 citations
,
October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genes control the color of human hair by affecting pigment production.
28 citations
,
July 2005 in “International Journal of Dermatology” Vitiligo is caused by the immune system attacking skin pigment cells.
8 citations
,
January 2017 in “Korean Journal of Physiology and Pharmacology” Pimecrolimus boosts melanin production and movement of skin pigment cells.
7 citations
,
March 2003 in “PubMed” The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.
4 citations
,
February 2023 in “International Journal of Stem Cells” The FTO gene hinders stem cells in hair follicles from becoming pigment cells.
2 citations
,
March 2020 in “Developmental cell” Stress can cause hair to turn gray by depleting pigment-producing cells through the release of a stress hormone.
June 2025 in “Animal Bioscience” miRNA-24 affects goat coat color by controlling proteins involved in pigment production.
January 2018 in “Jaypee Brothers Medical Publishers (P) Ltd. eBooks” Scalp micropigmentation is a process where tiny dots of pigment are tattooed onto the scalp to create the appearance of a shaved head or fuller hair.
January 2016 in “UNESP Institutional Repository (São Paulo State University)” Melasma results from changes in the skin's pigment and structure, not just pigment cell growth.
May 2004 in “International Journal of Cosmetic Science” Melanogenesis inhibitors like kojic acid and niacinamide can reduce inflammation and pigment production in skin cells.
January 1957 in “Nihon Chikusan Gakkaiho” Rabbit hair color is influenced by the shape and distribution of pigment granules.
283 citations
,
February 2011 in “Cell stem cell” COL17A1 is crucial for preventing hair graying and loss by supporting hair and pigment stem cells.
134 citations
,
September 2008 in “Lasers in surgery and medicine” Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.
22 citations
,
February 2008 in “Journal of Dermatological Science” EPR spectroscopy showed that spontaneous hair growth results in thicker skin and less pigmented hair than depilation-induced growth.
3 citations
,
September 2023 in “Stem Cell Research & Therapy” Stem cells can be used to create long-lasting skin cells for treating pigment disorders.
December 2025 in “The Journal of Basic and Applied Zoology” Red Sokoto goat fetuses develop firmer, pigmented skin with hair follicles as they grow.
51 citations
,
May 2004 in “American journal of ophthalmology” Using topical prostaglandin F2α for glaucoma may cause loss of eyelash or eyebrow pigment.
17 citations
,
May 1969 in “American Journal of Physical Anthropology” The silver marmoset's skin is thin, lacks pigment cells, and has unique features like keratinized spines and specialized glands.
January 2025 in “International Journal of Dermatology” Better diagnostic tools and treatment guidelines are needed for segmental vitiligo and related pigment issues.
May 2007 in “Bioline International (Bioline International)” Pregnant women often experience various skin changes, with pigment changes and stretch marks being most common.
April 2003 in “Journal of Cutaneous Medicine and Surgery” Lasers are effective for some skin conditions but can cause side effects like scarring and pigment changes; careful selection is important, and botulinum toxin type A is successful in reducing sweat in palmar hyperhidrosis.
51 citations
,
February 2006 in “Clinics in Dermatology” Pregnant women often experience skin and hair changes, with over half getting stretch marks and pigment changes, and should be cautious with cosmetic procedures due to potential risks.