The research found that people's hair proteins vary by individual and body part, with some differences between ethnic groups, which could help in forensics.
Keratin hydrogels from human hair show promise for tissue engineering and regenerative medicine.
March 2005 in “International Journal of Cosmetic Science” A new method helps understand hair shine and various products improve hair care.
Transglutaminases help form strong hair by linking proteins, and can potentially alter hair properties.
70 citations
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December 2004 in “Differentiation” The study identified and characterized new keratin genes linked to hair follicles and epithelial tissues.
59 citations
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September 2007 in “Biochemical and Biophysical Research Communications” The TRPV3 gene mutation affects hair growth by keeping mice in the growth phase longer, which could help treat hair loss.
30 citations
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August 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” TGase 3 helps build hair structure by forming strong bonds between proteins.
6 citations
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July 2022 in “World journal of stem cells” Using extracellular vesicles from stem cells can help hair grow by affecting scalp cells and hair follicles.
5 citations
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October 1988 in “Clinics in Dermatology” A method was developed to grow hair follicles in a lab for research on hair growth and health.
2 citations
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June 2018 in “Cosmetics” AMPD is a better and less damaging alternative to ammonium hydroxide for hair bleaching.
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.
March 2024 in “International journal of molecular sciences” The research identified key proteins that affect wool fiber thickness in Angora rabbits.
Cinchona succirubra extract with caffeine reduces hair loss and strengthens hair.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Dermal papilla cell-derived exosomes can help stem cells grow hair.
January 2023 in “Open Life Sciences” VEGFR-2 activation is likely involved in hair follicle growth, survival, and development.
April 2021 in “Arab Journal of Nuclear Sciences and Applications/Arab Journal of Nuclear Sciences and Applications ” Repeated use of protein hair conditioner with heat or gamma irradiation can harm skin and hair health in rats.
Keratin peptides in hair may help identify gender and ethnicity, but more research is needed.
January 2017 in “Clinical approaches and procedures in cosmetic dermatology” Cosmetic procedures can harm hair, but damage can be minimized with knowledge and care; however, once hair is damaged, it cannot be reliably repaired.
Biotin boosts wool growth and follicle health in sheep.
July 2025 in “Dermatology Practical & Conceptual” A 2-year-old boy has a rare hair disorder causing brittle hair and hair loss, which may improve with age.
277 citations
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June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.
254 citations
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January 2007 in “Chemical Society Reviews” Hair is a complex protein fiber with unique properties useful for developing hair products.
199 citations
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January 2004 in “The International Journal of Developmental Biology” Hair follicle growth and development are controlled by specific genes and molecular signals.
170 citations
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January 2010 in “animal” Hair follicle growth and fiber production in animals are influenced by chemical signals, proteins, pigmentation, genetics, and nutrients.
155 citations
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August 2003 in “Journal Of Experimental Zoology Part B: Molecular And Developmental Evolution” Understanding hair growth involves complex interactions between molecules and could help treat hair disorders.
107 citations
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December 2013 in “International Journal of Dermatology” The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.
100 citations
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December 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Researchers mapped and categorized specific keratin-associated protein genes on human chromosome 21q22.1.
79 citations
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January 2017 in “Dermatology practical & conceptual” Correcting nutrient deficiencies may help with hair loss, but the benefits of supplements without a deficiency are uncertain and could be harmful.
73 citations
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May 2009 in “Proceedings of the National Academy of Sciences” Disrupting the Sox21 gene in mice causes hair loss and regrowth cycles.
70 citations
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June 2010 in “Clinics in Dermatology” Certain groups may need vitamin supplements to improve hair health and prevent other health problems.