Laser hair removal works well for light skin with dark hair but needs caution for darker skin.
April 2018 in “Journal of Investigative Dermatology” Minoxidil didn't significantly increase hair growth in minipigs.
January 2023 in “Figshare” Mouse skin and hair aging starts at 200 days, with changes in hair follicles and more white hairs as signs of aging.
1 citations
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January 2014 in “International Journal of Trichology” A patient with a rare hair condition and skin disorder showed hair improvement after treatment.
11 citations
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January 1990 in “Cell and Tissue Research” Minoxidil does not specifically target any hair follicle cells.
41 citations
,
January 2001 in “Journal of Investigative Dermatology”
7 citations
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August 2017 in “PloS one” Key genes linked to hair growth and cancer were identified in hairless mice.
5 citations
,
February 2012 in “Australasian Journal of Dermatology” Two red-haired men with alopecia areata regrew black hair instead of red.
8 citations
,
July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
April 2015 in “Dentistry 3000” Premature hair graying in the face may be influenced by genetics and environment.
44 citations
,
April 1979 in “Journal of Ultrastructure Research” 40 citations
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November 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” Different melanocyte types in hair follicles either survive or die during the catagen phase.
April 2025 in “Turkish Journal of Hematology” Nilotinib may cause gray hair to return to its original color.
Hair germ cells differ from epidermal cells in keratin expression, and specific keratins form after hair differentiation.
11 citations
,
January 2012 in “Journal of cell science” Rac1 is essential for proper hair structure and color.
49 citations
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March 2004 in “Journal of Investigative Dermatology” The hHa7 gene is regulated by androgens in certain body hair, not scalp hair.
6 citations
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November 2001 in “Der Hautarzt” Photothermolysis is the best method for permanent hair removal.
66 citations
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February 1985 in “Archives of dermatological research” Hair dyes penetrate the scalp very minimally, less than 1%.
April 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” BMP signaling controls hair growth and skin color.
70 citations
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December 2004 in “Proceedings of the National Academy of Sciences” BMP signaling affects hair color by interacting with the MC-1R pathway.
2 citations
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July 1994 in “Journal of Dermatological Science” Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
July 2025 in “Pigment International” Follicular vitiligo causes hair to gray without skin color loss.
November 2011 in “Journal of Investigative Dermatology” TRH in hair follicles can influence hair color by increasing melanin.
103 citations
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April 2005 in “Experimental dermatology” Prostaglandin F2alpha and related compounds can increase hair growth and darken hair in mice.
27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
8 citations
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April 1997 in “Experimental Dermatology” hHbl gene is active in hair shaft cells and some pilomatricomas.
2 citations
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November 2006 in “Pump Industry Analyst” Pilomatricomas don't follow the usual hair follicle cell differentiation process.
95 citations
,
January 2009 in “Journal of Biomedical Optics” Nanoparticles penetrate hair follicles better when their size matches the cuticula thickness.
March 2024 in “Chinese Chemical Letters” Tiny glowing gold particles can stop hair growth by blocking a specific cell signal.
7 citations
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March 2003 in “PubMed” The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.