8 citations
,
March 2015 in “Molecular Medicine Reports” Hair dye ingredient PPD causes cell death and aging in human hair cells by altering microRNA levels.
June 2026 in “Clinical and Experimental Dermatology” Alopecia areata can cause rare changes in hair color and thickness.
7 citations
,
June 2020 in “Experimental dermatology” Researchers found that certain lipids, especially vitamin D3, are lower in prematurely grey hair than in pigmented hair.
30 citations
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December 2001 in “Experimental dermatology” Gonadal hormones significantly affect the severity of alopecia areata in mice.
June 2017 in “Journal of the American Academy of Dermatology” Plucked hair can help diagnose pemphigus vulgaris early.
3 citations
,
May 2020 in “Acta pharmaceutica” Protocatechuic acid can reduce melanin production and boost antioxidant activity in hair follicles.
August 2024 in “Journal of the American Academy of Dermatology” Nail color change might be an early sign of skin pigmentation from minocycline.
8 citations
,
March 2005 in “JDDG Journal der Deutschen Dermatologischen Gesellschaft” Bimatoprost eye drops can cause temporary eyelid changes and may help with hair growth research.
April 2026 in “International Journal of Dermatology” 4 citations
,
November 2019 in “Dermatology - Open Journal” Lichen planus pigmentosus is hard to treat and may be more common in North Africa than previously thought.
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.
1 citations
,
December 2018 in “IOP conference series. Materials science and engineering” CD34+ hair follicle stem cells can become melanin-producing cells for treating skin conditions.
April 2017 in “Journal of Investigative Dermatology” Sweat glands and hair follicles are determined by opposing signals, with BMPs promoting sweat glands and blocking BMPs leading to hair follicles.
130 citations
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December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle melanocytes die during hair regression.
10 citations
,
February 2006 in “Archives of dermatology” A man's chest hair turned white after a shingles infection, possibly due to virus-damaged pigment cells.
13 citations
,
February 2002 in “Archives of dermatology” A 32-year-old woman's hair loss was linked to skin nodules and severe headaches.
January 2026 in “Cosmoderma” A 9-year-old girl has a rare hair disorder causing beaded, sparse hair.
35 citations
,
January 2001 in “Journal of Animal Science” High dietary selenium, especially inorganic, causes weight loss and selenosis in pigs, with effects varying by hair color.
January 2008 in “대한피부과학회지” Micropigmentation is a safe procedure that effectively improves the appearance of scars on the scalp and eyebrows, with most patients showing excellent or good results.
3 citations
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April 1997 in “Developmental Dynamics” Trypsin slows hair growth and affects color by causing cell death in hair follicles.
March 2009 in “Chinese Journal of Dermatology” Melanocytes in the outer root sheath are likely stem cells that grow fast but stay immature.
3 citations
,
May 2020 in “Annals of the Academy of Medicine Singapore” Hair dye can cause serious scalp issues, including skull erosion.
32 citations
,
September 1966 in “Journal of Investigative Dermatology” 96 citations
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February 2002 in “Journal of the American Academy of Dermatology” Pseudofolliculitis barbae is a chronic skin condition affecting mainly African American and Hispanic individuals, caused by shaving tightly curled hair, and managed by prevention and treatment but not curable.
7 citations
,
February 2018 in “Journal of Investigative Dermatology” Fat tissue and a specific protein are crucial for healthy hair growth and maintenance.
28 citations
,
May 1998 in “Journal of the American Academy of Dermatology” Scalp inflammation can cause multiple hairs to grow from one follicle.
September 2024 in “The Journal of Dermatology” Nevus comedonicus can sometimes grow terminal hair, challenging previous beliefs.
4 citations
,
April 2019 in “JAAD Case Reports” DPR can cause skin, hair, and nail issues, sometimes appearing later in life.
May 2016 in “Hair transplant forum international”
January 2025 in “International Journal of Dermatology” Consider TFI in facial hypopigmentation diagnoses and confirm with a biopsy.