Human hair color is determined by melanin types and genetic factors.
249 citations
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April 2002 in “The FASEB journal” Human skin can make serotonin and melatonin.
222 citations
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January 2005 in “Endocrine journal” Melatonin is important for skin health and protection, and can be made by the skin or applied to it.
31 citations
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April 2019 in “Cell reports” Patient-derived melanocytes can potentially treat vitiligo by restoring skin pigmentation.
75 citations
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January 2009 in “International journal of trichology” Hair grays due to oxidative stress and fewer functioning melanocytes.
April 2019 in “Institutional Repositories DataBase (IRDB)” Patient-derived stem cell melanocytes could be a promising treatment for vitiligo.
PmtHEE is a better model for studying pigmented skin because it includes melanocytes and shows improved cell differentiation.
185 citations
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February 2018 in “Journal of Investigative Dermatology” Melatonin may benefit skin health and could be a promising treatment in dermatology.
10 citations
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August 2023 in “Animals” SLC45A2 and GPNMB genes help control chicken feather color by promoting melanin.
101 citations
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April 2013 in “Science” Feather pigment patterns form through melanocyte arrangement and simple regulatory mechanisms.
3 citations
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June 2025 in “Stem Cell Research & Therapy” Hair follicle-derived melanocyte transplant could effectively treat vitiligo by restoring skin color.
19 citations
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November 2023 in “npj Regenerative Medicine” Synthetic melanin applied to skin speeds up wound healing.
10 citations
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May 2023 in “iScience” Sox9 is crucial for hair follicle stem cells to become melanocytes instead of glial cells.
56 citations
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November 2010 in “Pigment Cell & Melanoma Research” Brain hormones significantly affect hair color and could potentially be used to prevent or reverse grey hair.
2 citations
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June 2013 in “In Vitro Cellular & Developmental Biology - Animal” Melanocytes from human fetal hair follicles were successfully cultured, showing potential for hair disease research and clinical use.
57 citations
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April 2009 in “Differentiation” SDF-1/CXCL12 and its receptor CXCR4 are crucial for melanocyte movement in mouse hair follicles.
21 citations
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February 2006 in “Clinical Cancer Research” Mitf plays a key role in melanoma progression and is linked to disease stage.
4 citations
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March 2024 in “Journal of Investigative Dermatology” SPRY1 deficiency in skin cells causes stem cells to move to the skin surface, leading to increased pigmentation.
11 citations
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February 1982 in “Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis” A new method can detect mutations in mice by observing changes in hair follicle cells.
9 citations
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November 2015 in “JAMA dermatology” A 91-year-old woman's hair turned black in one spot, with skin changes underneath.
April 2023 in “Australasian Journal of Dermatology” Lentiginous melanoma is most common on the face, especially the nose, cheek, and pre-auricular areas, with men more likely to have it on the scalp, ears, upper back, and trapezius, and women on the cheek and anterior arm. Sun damage is a key factor in its formation.
32 citations
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May 2023 in “Preprints.org” Skin pigmentation varies due to genetics, UV exposure, and medications, with treatments available but requiring medical advice.
2 citations
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August 2025 in “Reports — Medical Cases Images and Videos” A rare pigmented skin tumor called melanotrichoblastoma was diagnosed in a 51-year-old woman.
105 citations
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April 2005 in “Cell” Hair graying happens because certain cells aren't maintained properly.
43 citations
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February 2008 in “Journal of cutaneous pathology” Melanocyte precursors in human fetal skin follow a specific migration pattern and some remain in the skin's deeper layers.
1 citations
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April 2008 in “Pigment Cell & Melanoma Research” Foxn1 is essential for hair pigmentation by directing pigment transfer to hair cells.
April 2023 in “Journal of Investigative Dermatology” Blocking casein kinase 1 in skin cells can help melanocyte precursors move better, potentially helping with conditions like vitiligo or gray hair.
252 citations
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January 2008 in “Trends in Endocrinology and Metabolism” Melatonin in the skin helps protect against damage from stress and UV rays, and could be used to treat certain skin conditions.
16 citations
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January 1998 in “PubMed” Sun exposure and genetics increase skin cancer risk from precancerous lesions.
1 citations
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March 2015 in “Journal of the European Academy of Dermatology and Venereology” A clinically suspected melanoma appeared benign under the microscope but was confirmed by specific tests and a rare mutation.