34 citations
,
October 1982 in “Journal of applied polymer science” Moisture content significantly affects how human hair breaks.
20 citations
,
July 2010 in “Skin Research and Technology” Aging makes hair thinner and rougher, with less clear edges.
2 citations
,
March 1977 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.
March 2026 in “Biomolecules” MicroRNAs play a key role in controlling hair growth and quality in sheep and goats.
14 citations
,
October 2019 in “Journal of Cellular Physiology” Micrografts promote hair growth in androgenetic alopecia treatment.
17 citations
,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
75 citations
,
November 1965 in “Textile research journal” Papain and bisulfite break down human hair by dissolving parts of it.
40 citations
,
March 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
July 2016 in “Indian journal of science and technology” Neonate scalp hair is thinner, lacks a medulla, and has smaller follicles compared to adult hair.
7 citations
,
December 2011 in “Annals of anatomy” Involucrin helps strengthen the inner parts of human hair.
5 citations
,
December 2020 in “International journal of biological macromolecules” Treatments improved hair surface and scale structure but didn't increase certain bonds in the hair cortex.
81 citations
,
December 2007 in “Acta materialia” AFM helped show how hair changes under tension and the effects of damage and conditioner.
January 2026 in “International Journal of Biological Macromolecules” Small KP peptide improves hair without reducing agents, while larger proteins need them for better results.
2 citations
,
July 2019 in “Cosmetics” Beautiful hair is flexible and elastic due to its unique double-layered structure and can be enhanced with succinic acid treatment.
March 2026 in “Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials” Hair cuticles remain stable and resilient under stress due to strong protein content and crosslinking.
9 citations
,
April 2019 in “Journal of structural biology” Hair's internal fibers are arranged in a pattern that doesn't let much water in, and treatments like oils and heat change how much water hair can absorb.
November 2024 in “Journal of Microscopy” Human hair varies in structure based on curl type, with high curl hair showing the most differences.
2 citations
,
November 2017 in “Histochemistry and Cell Biology” Polyamines are abundant in certain parts of rat hair follicles and may play a key role in hair growth.
40 citations
,
January 2016 in “Elsevier eBooks” The skin is the largest organ, protecting the body, regulating temperature, and producing hormones.
9 citations
,
February 2016 in “Anatomical Science International” Hair proteins change location and structure as hair cells mature.
272 citations
,
September 2001 in “Journal of Biological Chemistry” Human hair keratins were cataloged, showing their roles in hair differentiation stages.
10 citations
,
January 2001 in “ACTA HISTOCHEMICA ET CYTOCHEMICA” Lysosomal proteases and cytoplasmic enzymes help hair follicle cells develop and differentiate.
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.
The research found that people's hair proteins vary, especially by ethnicity and body part, which could help identify individuals in forensic science.
30 citations
,
March 2017 in “ACS biomaterials science & engineering” Hair follicles are valuable for regenerative medicine and wound healing.
Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.
36 citations
,
October 2014 in “Langmuir” Bleaching hair removes its protective top layer and exposes more hydrophilic groups, changing its chemical surface and affecting how it interacts with products.
14 citations
,
March 1995 in “Journal of cell science” SV40 T antigen in hair follicles causes abnormal hair and health issues in mice.
April 2021 in “Indian Journal of Animal Research” Goat skin has collagen, elastic, and reticular fibers, with hair follicles increasing in depth as goats age.
2 citations
,
February 2016 in “Journal of sol-gel science and technology” A small molecule can strengthen fine hair, making it more resistant and natural-feeling.