January 2007 in “Sen'i Gakkaishi” Mf-rich hair degrades more than Ma-rich hair, especially with Proteinase K.
January 1997 in “Elsevier eBooks” Hair and nails are skin parts that develop early and serve protective and functional roles.
12 citations
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October 2018 in “Biotechnology reports” Recombinant keratin K31 makes damaged hair thicker, stronger, and straighter.
September 2023 in “Journal of Natural Fibers” Drying hair with a microfiber towel better maintains hair strength and structure than using a cotton towel or blow-drier.
19 citations
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January 2009 in “International review of cell and molecular biology” Hair's strength and flexibility come from its protein structure and molecular interactions.
29 citations
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September 2017 in “Genes” Selecting specific KRTAP26-1 gene variants can improve wool quality in sheep.
28 citations
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December 1997 in “Journal of Biological Chemistry” A genetic mutation in the hHa1 gene creates a smaller, but still functional, hair protein without causing hair problems.
8 citations
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June 2001 in “Journal of Biological Chemistry” A truncated protein linked to breast cancer may change cell adhesion.
The KRTAP36-2 gene in sheep affects wool yield.
May 2026 in “Journal of Health Sciences and Medicine” Biotinoyl tripeptide-1 nanoparticles effectively protect hair from heat damage.
11 citations
,
June 2013 in “PubMed” The automated flat iron can permanently straighten hair without chemicals, especially at 154°C, and silicone improves the results.
January 2025 in “International Journal of Cosmetic Science” Citric acid strengthens and improves damaged hair.
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.
February 2022 in “Fibers” Scientists created a non-toxic, sugar-based hair product that can style hair without damage.
97 citations
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March 2006 in “Journal of Investigative Dermatology” Mutations in the DSG4 gene cause a severe form of brittle hair and skin issues.
55 citations
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August 2013 in “PloS one” Genetic differences between young and old Tan sheep explain why their fleece changes from curly to straight as they age.
25 citations
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September 2014 in “SpringerPlus” Sheep have a unique gene, KAP8-2, that humans don't have, which may affect wool properties.
18 citations
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February 2006 in “Genomics” A new genetic mutation in mice causes permanent hair loss and skin wrinkling.
8 citations
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July 2020 in “BMC genomics” The research found genes that change during cashmere goat hair growth and could help determine the best time to harvest cashmere.
7 citations
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May 2022 in “PLOS ONE” Certain genes and pathways are linked to the production of finer and denser wool in Hetian sheep.
December 2025 in “Rapid Communications in Mass Spectrometry” Pepsin digestion improves accuracy in analyzing proteins in human hair.
July 2025 in “Scientific Reports” Fermented grapeseed oil effectively repairs and protects chemically damaged hair.
January 2025 in “Kuwait Journal of Science” KRT71 gene variants may influence camel hair shape but don't fully explain it.
The KRT84 gene is linked to better wool quality in Gansu Alpine Fine-wool sheep.
64 citations
,
March 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” GPRC5D is linked to the formation of hair, nails, and certain tongue areas.
December 2025 in “Cosmetics” The bio-based complex effectively repairs and protects chemically damaged hair.
March 2025 in “Digital Library of Theses and Dissertations (Universidade de São Paulo)” Ferulic acid and resveratrol protect hair from chemical and sun damage.
February 2026 in “International Journal of Molecular Sciences” PDLLA filler can improve hair thickness and shine by reducing age-related hair decline.
25 citations
,
April 2019 in “Animals” KRTAP28-1 gene can help breed sheep with finer wool.
July 2025 in “International Journal of Molecular Sciences” Four new genes related to sheep wool were discovered, showing genetic diversity.