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.
7 citations
,
August 2017 in “PloS one” Key genes linked to hair growth and cancer were identified in hairless mice.
138 citations
,
June 2023 in “Molecules” Skin pigmentation varies due to genetics, UV exposure, and drugs, with treatments available but requiring medical advice.
October 2022 in “Hair Transplantation” Temporary scalp trichopigmentation creates a shaved hair look on the scalp using pigments that fade over time.
27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
13 citations
,
January 2009 in “The Open Dermatology Journal” Oral pigmentation can be a sign of Addison's disease.
27 citations
,
May 2004 in “Journal of Investigative Dermatology”
23 citations
,
August 2017 in “Scientific Reports” Darker hair may lead to higher cortisol readings, suggesting a need to adjust for hair color in studies.
24 citations
,
November 1978 in “Biochemistry” α-type filaments in guinea pig hair follicles have unique structural features.
1 citations
,
December 2024 in “Case Reports in Dermatology” Cyclophosphamide likely causes skin darkening by affecting hair follicles.
303 citations
,
August 1971 in “The American Journal of Medicine” Melanocytes are destroyed by factors needed for melanin production, causing vitiligo and gray hair.
September 2019 in “Journal of Investigative Dermatology” PCE-DP brightens skin and promotes hair growth by enhancing cell growth and reducing melanin uptake.
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
,
March 2010 in “CRC Press eBooks” Some hair care products may improve hair growth and appearance, and botanicals can also help remove unwanted hair.
7 citations
,
June 1967 in “Journal of Investigative Dermatology” Plucking hairs in a certain way can result in intact hair roots, not related to baldness.
5 citations
,
May 1958 in “Archives of Dermatology” Treatment with corticosteroids and zinc injections can help hair regrowth and restore pigmentation in alopecia totalis.
Dark hair with a red beard likely evolved for camouflage, not attraction.
1 citations
,
January 2012 in “Human health handbooks” Hair color is determined by melanin types and gene activity.
May 2017 in “Journal of the American Academy of Dermatology”
March 2008 in “Journal of Clinical Dermatology” Micropigmentation is a good and safe method to improve the look of scalp and eyebrow scars.
February 2026 in “HCA Healthcare Journal of Medicine” Recognizing keratosis pilaris in all skin tones helps diagnose related skin issues and reduce distress.
2 citations
,
January 1999 in “Dermatology”
3 citations
,
January 2019 in “Jikken doubutsu ihou/Jikken doubutsu/Experimental animals/Jikken Dobutsu” Pigs without the Hairless gene showed skin and thymus changes, useful for studying human hair disorders.
11 citations
,
January 2016 in “Mycoses” Human black hair is best for distinguishing between T. mentagrophytes and T. verrucosum.
January 2024 in “Grail of science” Premature hair graying is caused by various factors and mechanisms.
10 citations
,
March 1973 in “Journal of Investigative Dermatology” 8 citations
,
July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
April 2024 in “Nepal journal of dermatology, venereology & leprology” Premature graying of hair is common and stressful, but not well understood or treated.
June 1997 in “Australasian Journal of Dermatology” Researchers found new hair and nail genes, how hair reacts to UV, differences in white and pigmented hair growth, nerve changes in alopecia, treatments for baldness and alopecia, a toenail condition linked to a genetic disorder, and that nail fungus is more common in people with psoriasis.
24 citations
,
May 2000 in “Journal of the American Academy of Dermatology” Pseudopelade can affect both the scalp and beard, causing hair loss.