182 citations
,
December 2007 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.
October 2024 in “InnovAiT Education and inspiration for general practice” Hirsutism in women is often caused by hormonal imbalances and can be managed with treatments targeting the underlying cause.
14 citations
,
May 1979 in “International Journal of Dermatology” Trichostasis spinulosa mainly affects the nose, with many tiny hairs in one follicle, possibly influenced by hormones and sunlight.
24 citations
,
November 1978 in “Biochemistry” α-type filaments in guinea pig hair follicles have unique structural features.
10 citations
,
December 2001 in “PubMed” The conclusion is that substances can penetrate hair fibers through multiple pathways, including both the cell membrane complex and the non-keratinous parts.
3 citations
,
March 1992 in “Journal of clinical pathology” Most women with excess hair growth need only a clinical evaluation and minimal tests unless they show signs of virilism.
October 1990 in “Archives of Dermatology” Hair loss and growth can be accurately measured using computer-assisted counting.
January 2007 in “한국미용학회지” Women without alopecia have more fat tissues and longer hair roots than those with alopecia.
96 citations
,
December 1995 in “Journal of Investigative Dermatology”
January 2025 in “BMC Genomics” Key genes and RNA networks regulate hair growth and follicle density in Rex rabbits.
October 1976 in “BMJ. British medical journal” 1 citations
,
November 2003 in “Humana Press eBooks” AFM helps study hair surfaces for dermatology, cosmetics, and forensics.
5 citations
,
March 2009 in “Pediatric Dermatology” The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.
20 citations
,
December 2010 in “Journal of Morphology” Lizard claws have hair-like keratins similar to those in mammals.
December 2025 in “Russian Journal of Skin and Venereal Diseases” Thinner hair follicle structures are linked to non-scar alopecia.
3 citations
,
December 1982 in “Australasian journal of dermatology” Tailored treatments combining medication and hair removal methods are effective for managing excessive hair growth in women.
1 citations
,
April 2009 in “Wiley Encyclopedia of Forensic Science” Microscopic hair analysis helps identify species and sometimes individuals in forensic science.
5 citations
,
October 2013 in “Experimental Dermatology” The commentary explains that a balance of HR protein and putrescine is important for normal hair growth.
3 citations
,
September 2014 in “SpringerPlus” Human hair loss may have evolved to help increase brain size.
12 citations
,
August 1984 in “Genetics Research” The N gene affects the protein makeup of mouse hair.
38 citations
,
September 1997 in “The journal of investigative dermatology/Journal of investigative dermatology” A mutation in mice causes hair loss and skin issues due to a defect in a gene affecting cell adhesion.
58 citations
,
April 2009 in “Dermatologic Surgery” Most women have a widow's peak and specific hairline features useful for designing hair restoration surgery.
9 citations
,
January 2021 in “Biomolecules” Infrared spectral imaging can map hair growth proteins and sugars without staining.
13 citations
,
September 2015 in “Aesthetic Surgery Journal” Transplanting hair from the nape and around the ear to the hairline and temples generally satisfies patients and looks natural.
1 citations
,
June 1998 in “Journal of Forestry Research” Mammalian hair scales change from smooth to wavy due to friction.
12 citations
,
May 2003 in “Journal of dermatological science” Hsc70 protein may influence hair growth by responding to androgens.
1 citations
,
May 2019 in “Journal of The European Academy of Dermatology and Venereology” New method, hair distribution width (HDW), improves accuracy in diagnosing androgenetic alopecia (AGA).
8 citations
,
February 1968 in “Australian Journal of Zoology” The southern elephant seal's skin layer helps waterproof the skin by being tightly connected to hair shafts.
30 citations
,
March 1996 in “British Journal of Dermatology”
8 citations
,
February 2017 in “Archives of Dermatological Research” Intense pulsed light treatment effectively reduces underarm hair by making hair follicles smaller and extending their resting phase.