1 citations
,
January 2003 Merkel cells likely attract sensory nerve fibers.
98 citations
,
June 2008 in “Human mutation” A genetic change in the EDAR gene causes the unique hair traits found in East Asians.
38 citations
,
May 2000 in “Livestock production science” Giving high-quality protein or methionine supplements helps improve hair growth in Angora goats and, to a lesser extent, in Cashmere goats.
13 citations
,
March 2006 in “International Journal of Cosmetic Science” The study found that a polymer treatment changes the charge on hair surfaces, making bleached hair smoother and less porous.
April 2026 in “Microscopy Research and Technique” The high-cost product with coconut oil and glycerol effectively restores severely damaged hair.
October 2024 in “UNESP Institutional Repository (São Paulo State University)” Straightening and dyeing damage hair structure.
March 2024 in “International journal of molecular sciences” The research identified key proteins that affect wool fiber thickness in Angora rabbits.
January 2003 in “Research Portal (King's College London)” Hair color affects light reflection, with black hair having higher cuticle angles and lighter hair showing less specular reflection.
6 citations
,
March 1998 in “Textile Research Journal” Chemical treatments can change the scale heights of wool and cashmere fibers, affecting their identification.
45 citations
,
February 2002 in “International Journal of Cosmetic Science” Ceramide helps protect African–American hair from breakage.
4 citations
,
May 2014 in “PubMed” Monoethanolamine-based hair colorants can cause more damage to hair than ammonia-based ones.
Hair feels different when touched and rubs together in various ways.
December 2023 in “Materials Today Sustainability” Scientists made glow-in-the-dark dots from human hair that can detect iron, prevent counterfeiting, and reveal fingerprints.
53 citations
,
November 1997 in “Journal of Forensic Sciences” Darker hair in guinea pigs holds more codeine than lighter hair.
40 citations
,
May 2016 in “Proceedings of the National Academy of Sciences of the United States of America” Changes in keratin make hair follicles stiffer.
24 citations
,
June 2020 in “Industrial Crops and Products” Activated carbon fibers from Metaplexis japonica seed hair are highly effective for removing the dye methylene blue from water.
23 citations
,
August 2019 in “Proceedings of the National Academy of Sciences of the United States of America” Pollution exposure speeds up hair damage.
22 citations
,
August 2015 in “PloS one” Keratin from hair binds well to gold and BMP-2, useful for bone repair.
19 citations
,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
18 citations
,
November 2016 in “Transgenic research” Overexpressing Tβ4 in cashmere goats improves hair fiber traits and increases cashmere yield.
17 citations
,
June 2011 in “The journal of investigative dermatology/Journal of investigative dermatology” The G60S Connexin43 mutation causes hair growth issues and poor hair quality in mice, similar to human ODDD patients.
12 citations
,
September 2010 in “Clothing and Textiles Research Journal” Poplar seed hair fibers could be an eco-friendly insulation for textiles.
7 citations
,
January 2018 in “Materials Today: Proceedings” Adding human hair fibers and glass micro-spheres to epoxy improves its wear resistance and strength.
5 citations
,
December 2011 in “Springer eBooks”
3 citations
,
June 2019 in “Journal of cosmetic dermatology” Lower pH straighteners change hair more but weaken it.
1 citations
,
December 2022 in “Applied Sciences”
February 2025 in “Brazilian Journal of Hair Health” The Brazilian candle flame technique can damage hair by melting the cuticle and exposing the cortex.
August 2016 in “International journal of scientific research in science, engineering and technology” Adding human hair fibers to soft soil makes it stronger and prevents cracking.
November 2011 in “Advanced Materials Research” Adding 1% hair fibers to brake materials improves friction and wear, making them more effective.
Different treatments change the strength and flexibility of human hair.