38 citations
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June 2005 in “Acta Biochimica Polonica” Splenic eumelanin in C57BL/6 mice is different from hair eumelanin.
81 citations
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October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genes control the color of human hair by affecting pigment production.
6 citations
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December 2013 in “Journal of Cosmetic Dermatology” Pigmented concealing powders can improve the look of hair density for people with hair loss but need daily application and may not work well in wet conditions.
25 citations
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December 1973 in “Biochemical Journal” Guinea-pig hair and follicle proteins are mostly similar, but follicles have more group 2 proteins and fewer group 3 and 4 proteins.
9 citations
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June 1959 in “Archives of dermatology” Hair can darken after inflammation and then return to its original color.
18 citations
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June 1992 in “Acta Histochemica” Human hair follicles have a unique cell distribution and differentiation pattern during growth.
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.
4 citations
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March 2013 in “The American Journal of Cosmetic Surgery” Melanin absorbing light is necessary but not enough for effective hair removal by light treatment.
5 citations
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April 2019 in “DOAJ (DOAJ: Directory of Open Access Journals)” Stopping shaving or removing hair follicles usually resolves Pseudofolliculitis barbae.
18 citations
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November 2005 in “Archives of Dermatological Research”
109 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.
15 citations
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January 1988 Hair follicles have unique proteins that vary by species and are influenced by nutrition.
5 citations
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January 2006 in “Indian Journal of Dermatology, Venereology and Leprology” Synthetic hairs are not recommended for use.
April 2012 in “Development” Rac1 is crucial for normal hair structure and pigmentation.
April 2026 in “bioRxiv (Cold Spring Harbor Laboratory)” The Lanyu pig's hair follicles are similar to human ones, making it useful for studying skin healing.
21 citations
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April 2019 in “Clinical, cosmetic and investigational dermatology” The document concludes that stopping shaving or removing affected hair can alleviate Pseudofolliculitis barbae (PFB).
January 1981 in “Purdue e-Pubs (Purdue University)” Pig skin is similar to human skin, with no major changes as they age.
August 2023 in “Journal of Investigative Dermatology”
11 citations
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July 2008 in “International Journal of Dermatology” Greying hairs may be protected from alopecia areata.
Surgical repigmentation can permanently restore color to white hair in vitiligo patients.
January 2007 in “Pizhūhish va sāzandigī” Hairless guinea pigs are useful for research in allergies, skin tests, and diseases.
1 citations
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March 1991 in “PubMed” Naevoid bundle hair is an unusual hair growth pattern where multiple hairs fuse together.
July 1993 in “Journal of Radioanalytical and Nuclear Chemistry” Mouse hair element patterns vary, making it unreliable for tracking time.
3 citations
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June 2017 in “International Journal of Radiation Biology” Gamma rays did not change hair follicle density but increased white and hypopigmented hairs in mice.
54 citations
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September 1999 in “PubMed” K15 staining helps distinguish basal cell carcinoma from trichoepithelioma.
October 2025 in “International Journal of Advanced Multidisciplinary Research and Studies” Hairless dogs have unique skin adaptations to regulate temperature and protect against environmental factors.
38 citations
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July 1993 in “Journal of Investigative Dermatology”
13 citations
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May 2022 in “Cell discovery” The study found new details about human hair growth and suggests that preventing a specific biological pathway could potentially treat hair graying.
1 citations
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October 2022 in “Dermatology practical & conceptual” Isolated patchy heterochromia with pili annulati can occur without other health issues.
9 citations
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July 2022 in “Cell reports” Sox2 controls hair color by affecting pigment production in hair follicles.