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March 2003 in “The Lancet” Imatinib can repigment grey hair, while SU11428 can cause temporary hair depigmentation.
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August 2017 in “PloS one” Key genes linked to hair growth and cancer were identified in hairless mice.
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February 2002 in “International Journal of Cosmetic Science” Recent findings show that hair growth and color are controlled by a complex network of signals in the hair follicle.
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June 1992 in “Acta Histochemica” Human hair follicles have a unique cell distribution and differentiation pattern during growth.
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.
June 2017 in “Journal of the American Academy of Dermatology” Plucked hair can help diagnose pemphigus vulgaris early.
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January 1973 in “ACTA HISTOCHEMICA ET CYTOCHEMICA” Brown skin in guinea pigs has more ascorbic acid and related enzymes, black skin uses ascorbic acid well, and white skin has the most protein.
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November 1978 in “Biochemistry” α-type filaments in guinea pig hair follicles have unique structural features.
March 2009 in “Medical & surgical dermatology” Women with androgenetic alopecia have fewer terminal hairs, phenol in nail surgery is safe, and a new hair transplant method is faster and less damaging.
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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.
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November 2022 in “Frontiers in medicine” The study found that giant pandas have more melanin in black hair follicles than white, with gene expression differences that could affect hair color and skin health.
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January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
October 2022 in “Hair Transplantation” Temporary scalp trichopigmentation creates a shaved hair look on the scalp using pigments that fade over time.
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May 2018 in “JAAD Case Reports” A man's gray hair got darker and thicker after using a psoriasis drug.
March 2009 in “Chinese Journal of Dermatology” Melanocytes in the outer root sheath are likely stem cells that grow fast but stay immature.
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October 2017 in “Our Dermatology Online” The conclusion is that a brown halo around hair follicles, seen in rapid hair loss, might be linked to inflammation or chemical exposure.
September 2019 in “Journal of Investigative Dermatology” PCE-DP brightens skin and promotes hair growth by enhancing cell growth and reducing melanin uptake.
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June 1967 in “Journal of Investigative Dermatology” Plucking hairs in a certain way can result in intact hair roots, not related to baldness.
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June 2014 in “Pediatric dermatology” A baby girl grew extra hair from contact with her grandfather's hair medicine, but it went away after stopping exposure.
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April 2014 in “PLOS ONE” Gray hair may be caused by lower antioxidant activity in hair cells.
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March 2018 in “Pigment Cell & Melanoma Research” The environment around melanocyte stem cells is key for hair regeneration and color, with certain injuries affecting hair color and potential treatments for pigmentation disorders.
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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.
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June 2005 in “Journal of The American Academy of Dermatology” Very few people experience increased hair growth after laser hair removal, especially those with darker skin and black hair.
July 2025 in “Journal of Investigative Dermatology” Reducing PEDF may help treat hair loss.
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December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle melanocytes die during hair regression.
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September 2018 in “International Journal of Cosmetic Science” Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.
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December 1977 in “Virchows Archiv B Cell Pathology”