January 1991 in “Journal of Society of Cosmetic Chemists of Japan” Hair treatments can damage hair by changing its chemical content.
SLE patients experience hair loss similar to telogen effluvium, with hair damage and immune activity at hair follicles.
January 2004 in “Laboratory Animal Science and Administration” The hairless mutant gene causes early hair loss and affects skin and thymus development in mice.
1 citations
,
November 2003 in “Humana Press eBooks” AFM helps study hair surfaces for dermatology, cosmetics, and forensics.
4 citations
,
January 2017 in “Biological & pharmaceutical bulletin” Inhibiting ALOX12 can help hair cuticle maturation by increasing S100A3 citrullination.
Indian hair is unique due to genetics and care practices, with specific scalp bacteria and fungi.
10 citations
,
January 1980 in “Ultrastructural pathology” Green hair has high copper levels due to contaminated water and damaged hair cuticles.
20 citations
,
December 1995 in “Veterinary Dermatology” Yorkshire Terriers with Colour Dilution Alopecia have reduced melanin and hair structure issues.
12 citations
,
January 2001 in “Der Hautarzt” Trichorhinophalangeal syndrome causes hair, facial, and bone issues, with no specific treatment beyond gentle care.
9 citations
,
October 1995 in “Clinical Dysmorphology” The family has a unique form of ectodermal dysplasia similar to Clouston syndrome but with different hair and skin symptoms.
6 citations
,
January 2005 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The 16th-century mummy's hair was well-preserved due to a calcium surface coat.
4 citations
,
January 2000 Piedraia hortae fungi dissolve both the outer and inner layers of hair.
April 2026 in “Proceedings of the National Academy of Sciences” Tmem30b is essential for hearing by maintaining hair cell structure in the ear.
December 2025 in “International Journal of Advanced Biochemistry Research” Malvi cattle hair varies in color and pattern across different body regions.
February 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” The gene Prss53 affects hair shape and bone development in rabbits.
11 citations
,
January 1977 in “Archives of dermatological research” Mouse tail skin has different keratinization near hair follicles and scales.
45 citations
,
April 2009 in “Journal of anatomy” Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.
9 citations
,
July 2019 in “Folia Morphologica” Brandt's hedgehog has thick skin on its back and many glands near its nostrils.
61 citations
,
February 1982 in “Cell and Tissue Research”
June 2026 in “Communications Biology” Hoxc13 and hair keratin are needed for forming rough skin on frog mating pads.
17 citations
,
November 1967 in “American Journal of Anatomy” Hairless mice have longer hair follicles and abnormal structures during the catagen phase.
10 citations
,
November 2016 in “International Journal of Cosmetic Science” A tough membrane between the outer and inner layers of human hair protects it from damage.
27 citations
,
May 2019 in “Cosmetics” The hair cuticle is made of tough proteins that protect the hair, but more research is needed to fully understand its structure.
27 citations
,
February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
6 citations
,
December 2018 in “International Journal of Cosmetic Science” CARB is a strong barrier in human hair that prevents dye penetration.
8 citations
,
July 2004 in “Journal of morphology” Marsupial hair structure and keratin distribution are similar to placental mammals.
1 citations
,
March 2017 in “Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego” Domestic cat hair varies in thickness and length, with guard hairs being longest and thickest, and all hair types mainly contain keratin.
59 citations
,
August 1981 in “PubMed” Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.
A six-year-old girl with extra hair on her elbows was treated with hair removal methods.
1 citations
,
July 2008 in “Expert Review of Dermatology” Normal hair thickness varies by scalp area and a mix of hair thicknesses is typical in healthy individuals.