3 citations
,
September 2020 in “Journal of cosmetic dermatology” Coconut oil makes hair stronger and more flexible than mineral oil.
February 2019 in “PubMed” The research found that twisting hair fibers can show changes in stiffness and damage, and help tell apart different hair treatments.
65 citations
,
May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
Different treatments change the strength and flexibility of human hair.
1 citations
,
July 2021 in “Forensic science international” Both a lock of hair and a single hair strand can show chronic drug use, but at least six single hairs are needed for accurate results.
The conclusion cannot be provided because the document is not accessible.
98 citations
,
June 2008 in “Human mutation” A genetic change in the EDAR gene causes the unique hair traits found in East Asians.
3 citations
,
November 2021 in “Frontiers in Genetics” Certain genes are linked to the quality of cashmere in goats.
1 citations
,
November 2020 in “Research Square (Research Square)” The study found specific skin cells and genes that may affect the quality of cashmere in Liaoning Cashmere Goats.
5 citations
,
September 2017 in “Colloids and surfaces. B, Biointerfaces” Tying a knot can measure hair friction, useful for medical applications.
July 2023 in “British journal of dermatology/British journal of dermatology, Supplement” Aging changes scalp cells, possibly affecting hair health in older women.
89 citations
,
August 2008 in “Human genetics” The EDAR gene greatly affects hair thickness in Asian populations.
September 2010 in “International Journal of Cosmetic Science” Chemical treatments change hair surface properties, making it more hydrophilic and able to bind conditioners.
June 2026 in “Frontiers in Cell and Developmental Biology” Dermal papilla cells are key to fine wool growth in sheep.
9 citations
,
June 2020 in “European Radiology Experimental” 15-Gy x-ray irradiation temporarily alters rat calvaria skin without causing significant inflammation or fibrosis.
January 2024 in “Kafkas Universitesi Veteriner Fakultesi Dergisi” A specific genetic variation affects wool quality in sheep.
July 2022 in “New Zealand journal of agricultural research” The KRTAP27-1 gene variations in sheep may affect wool length and weight.
March 2024 in “Research Square (Research Square)” The TT genotype of a specific SNP in sheep is linked to better wool quality.
The KRT84 gene is linked to better wool quality in Gansu Alpine Fine-wool sheep.
September 2024 in “Heliyon” Repeated hair dyeing significantly damages hair.
7 citations
,
July 2004 in “International Journal of Cosmetic Science” Different hair types from various ethnic groups affect hair shine due to characteristics like thickness and shape.
December 2023 in “Data in Brief” Curly hair's strength and flexibility vary with moisture and temperature.
6 citations
,
December 1966 in “Textile Research Journal” Animal hair fibers like wool and mohair are strong when dry, but vicuna fibers are very brittle.
11 citations
,
July 2004 in “International Journal of Cosmetic Science” The conclusion is that a new method to measure hair shine was confirmed to match people's visual assessments.
September 2025 in “Sahel Journal of Life Sciences FUDMA” Chemical hair straighteners can severely damage hair and scalp with repeated use.
November 2023 in “Computational and Structural Biotechnology Journal” A single robotic system can accurately harvest and implant hair grafts, showing promise for real-world use.
11 citations
,
January 2006 in “International Journal of Cosmetic Science” Some oils can penetrate hair and reduce the stickiness between fibers, but mineral oil cannot.
104 citations
,
October 2016 in “PLoS ONE” CRISPR/Cas9 gene editing in cashmere goats increases hair follicles and fiber length, boosting cashmere yield.
30 citations
,
March 2019 in “Archives animal breeding/Archiv für Tierzucht” The KRTAP15-1 gene affects cashmere fiber thickness in goats.
2 citations
,
January 2017 Hair movement can indicate hair quality and health.