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 2024 in “International Journal of Herbal Medicine” Melanin is important for hair color, health, and UV protection.
6 citations
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January 2017 in “Journal of toxicologic pathology” Rabbit skin with active hair growth shows thicker, redder areas due to larger, more numerous hair follicles and increased blood vessels.
January 2022 in “Clinical Cases in Dermatology” A man developed a unique rash on his neck after taking niacinamide, and doctors recommend considering niacinamide as a cause for similar rashes and using dermatoscopy for diagnosis.
28 citations
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January 2017 in “Indian Dermatology Online Journal” Skin problems like acne, excessive hair growth, and oily skin are common in women with PCOS and can help with early diagnosis.
January 1982 in “Clinical Cosmetic and Investigational Dermatology” Familial dyskeratotic comedones are a rare, inherited skin condition that is hard to treat but may improve slightly with topical retinoids and urea cream.
17 citations
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December 2015 in “International Journal of Cosmetic Science” Visible light can improve skin disorders and hair loss, but more research is needed to understand long-term effects.
June 1996 in “Journal of Dermatological Science” Vitamin D3 applied to mouse skin caused more wrinkles and sagging due to changes in the skin's outer layer.
October 1991 in “Archives of Dermatology” The woman has a skin condition involving nodules, scars, and hair loss.
18 citations
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March 1974 in “Acta dermato-venereologica” Chronic kidney disease can cause skin and nail problems.
152 citations
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December 2003 in “Micron” As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
10 citations
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January 1967 in “PubMed” Oral contraceptives often cause melasma and other skin issues.
April 2012 in “Journal of the American Academy of Dermatology” Clofazimine successfully treated a man's ashy dermatosis, clearing his skin lesions.
1 citations
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January 2009 A 25-year-old Malay fireman had skin bumps on his neck that were removed successfully after other treatments failed.
11 citations
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December 2010 in “Archives of Dermatology” A man with rare skin changes on his fingers was diagnosed with multiple myeloma-linked amyloidosis.
August 2016 in “Journal of the Portuguese Society of Dermatology and Venereology” Two women with darker skin had both frontal hair thinning and skin discoloration.
75 citations
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January 2009 in “International journal of trichology” Hair grays due to oxidative stress and fewer functioning melanocytes.
January 2026 in “Journal of Cosmetic Dermatology” Menopause reduces skin fat, but treatments like magnolol and PLLA-SCA can help restore skin health.
3 citations
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November 2022 in “Experimental dermatology” Melatonin may inhibit melanoma growth and has potential as a cancer therapy aid, but its effects on human skin pigmentation need more research.
July 2024 in “Journal of Investigative Dermatology”
December 2025 in “The Journal of Basic and Applied Zoology” Red Sokoto goat fetuses develop firmer, pigmented skin with hair follicles as they grow.
January 2022 in “International Journal of Nutrology” Diet and nutrients, including lycopene from tomatoes and hydroquinone from wheat, can help control melasma, a skin condition.
July 2025 in “Journal of Investigative Dermatology” Androgens reduce THY1 in skin cells, leading to less fat, more fibrosis, and worse healing in males.
23 citations
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May 2017 in “Journal of the American Academy of Dermatology” FFA patients have fewer melanocytes and thinner skin compared to others.
April 2025 in “Revista Digital de Postgrado” Severe malnutrition in young children causes various skin and nail issues, mainly pigmentation changes and extreme thinness.
December 2023 in “International Journal of Dermatology” Adults with gender dysphoria on hormone treatment often have skin problems like acne, which are common but not always recognized.
11 citations
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January 2000 in “Der Hautarzt” Male hypogonadism affects skin and hair, causing thin skin, less hair, and skin reactions to treatment.
1 citations
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January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Increased PHGDH expression causes early melanin buildup in hair follicles.
September 2022 in “JAAD case reports” The man has a genetic skin condition called pachyonychia congenita.
11 citations
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July 2012 in “Current Opinion in Pediatrics” Skin problems can be signs of hormone-related disorders and recognizing them early is important for treatment.