Dark hair with a red beard likely evolved for camouflage, not attraction.
72 citations
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November 1997 in “Clinics in dermatology” Vitiligo is a skin condition causing white patches, likely due to an autoimmune issue.
September 2023 in “Curēus” A 21-year-old male has a benign skin condition called Becker's nevus, which he chose not to treat.
1 citations
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January 2016 in “Acta histochemica” Black sheep have higher levels of Gnαs and Gnα11 proteins, which may affect their coat color.
9 citations
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October 2014 in “Experimental and Clinical Endocrinology & Diabetes” Knuckle Acanthosis Nigricans is common in Latin American youth and may indicate early insulin resistance, especially in those with normal weight.
April 2015 in “한국생물공학회 학술대회” Finasteride reduces melanin production in skin cells.
October 2022 in “Boletín médico del Hospital infantil de México/Boletín médico del Hospital Infantil de México” The patient has a rare skin condition that shows features of two known disorders.
1 citations
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May 2007 in “Chinese Medical Journal” Complete removal of large scalp nevi is recommended to prevent complications.
4 citations
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February 2022 in “Nutrients” Korean Red Ginseng saponins may protect skin from inflammation and darkening caused by air pollution.
16 citations
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January 2017 in “Anais brasileiros de dermatologia/Anais Brasileiros de Dermatologia” Managing frontal fibrosing alopecia and lichen planus pigmentosus is challenging due to resistant hair loss and skin discoloration.
November 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin cells and certain hair follicle areas produce hemoglobin, which may help protect against oxidative stress like UV damage.
April 2013 in “Cancer Research” SKH1 hairless mice have identifiable epidermal stem cells with specific markers.
24 citations
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March 2018 in “Pigment Cell & Melanoma Research” The environment around melanocyte stem cells is key for hair regeneration and color, with certain injuries affecting hair color and potential treatments for pigmentation disorders.
11 citations
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January 2016 in “Evidence-based Complementary and Alternative Medicine” Rice bran extract can increase melanin production and may help treat melanin deficiency.
23 citations
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January 2015 in “Journal of The American Academy of Dermatology” People with myotonic dystrophy type 1 have a higher chance of getting skin tumors, including melanoma.
6 citations
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April 2013 in “International Journal of Dermatology” Dermoscopy helps diagnose unusual skin lesions like osteonevus of Nanta and can prevent misdiagnosis of serious conditions.
1 citations
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June 2017 in “Veterinary dermatology” A cross-bred lamb with severe skin and movement issues had ichthyosis fetalis but normal vitamin A levels.
38 citations
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June 2018 in “Archives of Toxicology” Different species and human skin models vary in their skin enzyme activities, with pig skin and some models closely matching human skin, useful for safety assessments and understanding the skin's protective roles.
Azelaic acid helps with skin pigmentation issues, but its full effects are not completely understood.
January 2012 in “Human health handbooks” The skin produces and uses vitamin D for bone health, cell growth, and immune function.
October 2019 in “Journal of Evolution of Medical and Dental Sciences” A 56-year-old man was diagnosed with Cronkhite-Canada Syndrome after showing symptoms like diarrhea, weight loss, and skin changes.
1 citations
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March 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Skin cell types develop when specific genes are turned on by removing certain chemical tags from DNA.
October 2020 in “Our Dermatology Online” Skin changes and high vitamin B12 levels can be early signs of cancer.
7 citations
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June 2001 in “PubMed” Pig ear skin is similar to human skin, making it useful for research, but it has some differences.
10 citations
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October 2015 in “Journal of the International Association of Providers of AIDS Care” A woman with HIV had a severe skin condition that improved with antiretroviral therapy.
16 citations
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August 2000 in “Il Farmaco” Men have more tryptophan in their hair than women, and it increases with age and is higher in darker and grey or white hair.
January 2000 in “Cambio 16” Bcl-2 affects hair growth and pigmentation by controlling cell death.
December 2023 in “Clinical, cosmetic and investigational dermatology” The study found that white hair in vitiligo has specific patterns and structures, which vary with the stage of the disease and may be similar to another hair condition.
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.
16 citations
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July 2016 in “Journal of Dermatological Science” Regenerated hairs can regain their color if the wound occurs during a certain stage of hair growth, and this process is helped by specific skin cells and proteins.