27 citations
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January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
32 citations
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September 1996 in “Archives of Dermatological Research” 6 citations
,
September 1996 in “Archives of Dermatological Research” October 2024 in “Skin Research and Technology” Pili annulati causes zebra-striped hair but doesn't affect hair strength or quality of life.
April 2026 in “International Journal of Dermatology”
October 2024 in “Journal of the Pakistan Medical Association” Genetics, nutrition, lifestyle, and hormones affect early grey hair, but more research is needed.
23 citations
,
November 2007 in “Actas Dermo-Sifiliográficas” Thyroid hormone (T3) may reverse gray hair by stimulating hair growth.
19 citations
,
October 1996 in “International Journal of Dermatology” Pseudopelade is a rare inherited hair loss condition with a genetic cause.
November 2022 in “Cosmetics” Red pigmented rice, like Sang-Yod rice, could help promote hair growth and prevent hair loss.
September 2024 in “Dermatology Reports” Sonidegib often causes hair loss, and LC-OCT helps identify early signs.
September 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Non-invasive methods can effectively monitor hair growth cycles, aiding hair loss treatment development.
June 2025 in “British Journal of Dermatology” Segmented hair color changes can indicate active alopecia areata.
31 citations
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September 1996 in “Differentiation” The upper dermal sheath can regenerate hair in rats.
13 citations
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January 2009 in “The Open Dermatology Journal” Oral pigmentation can be a sign of Addison's disease.
3 citations
,
January 2019 in “Electronic Imaging” The device accurately estimates natural hair color at the roots in real time.
82 citations
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January 1997 in “Forensic science international” Drugs can be incorporated into hair based on their chemical properties and hair pigmentation.
August 2012 in “Nature Cell Biology” Hair grows when stem cell offspring in the follicle base proliferate, influenced by the dermal papilla.
December 2023 in “Forensic science international. Genetics” The RapidHIT ID system can effectively get DNA profiles from hair roots with enough cells.
3 citations
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February 2021 in “Experimental dermatology” Dermal papilla microtissues could be useful for initial hair growth drug testing.
15 citations
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December 1972 in “Journal of Investigative Dermatology” 6 citations
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July 1976 in “JAMA” Black patients have unique skin conditions that require specific knowledge for proper treatment.
24 citations
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November 2019 in “Experimental Dermatology” PPAR-γ is important for healthy hair and its problems, and more research on PPAR-γ treatments is needed.
60 citations
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January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” Applying a specific inhibitor lightens skin and hair color.
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.
1 citations
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December 1965 in “PubMed”
11 citations
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March 2008 in “Experimental Dermatology” A substance called compound-1 could help increase hair growth by maintaining prostaglandin levels in hair follicles.
8 citations
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February 2005 in “British Journal of Haematology” Chemotherapy caused the patient's hair to have alternating thick and thin segments.
1 citations
,
April 2023 in “Animals” Wnt and BMP pathways stimulate hair growth in Min pigs, with Wnt being more effective.
1 citations
,
August 1994 in “Journal of Cutaneous Pathology” Hair loss happens due to faster cell growth and fewer cells in affected follicles.
11 citations
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August 1986 in “Archives of Dermatology” Vitamin B12 deficiency can cause skin and hair color changes, which can be reversed with treatment.