12 citations
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October 2018 in “Biotechnology reports” Recombinant keratin K31 makes damaged hair thicker, stronger, and straighter.
5 citations
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April 2024 in “Biology” Improving human hair follicle models is crucial for better hair loss treatments.
5 citations
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September 2012 in “Journal of Investigative Dermatology” Scientists can mimic hair disorders by altering genes in lab-grown human hair follicles, but these follicles lack some features of natural ones.
3 citations
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January 1994 in “Journal of Society of Cosmetic Chemists of Japan” Hair grows slower and thinner with age, but a test tonic improved growth in alopecia subjects.
2 citations
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March 2019 in “Lasers in surgery and medicine” Higher light doses cause more damage to hair follicles, predicting better hair removal results.
2 citations
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January 1994 in “Journal of S C C J” The study concluded that certain hair growth measurements are good indicators of baldness severity and provide a more accurate assessment than subjective grading.
December 2025 in “International Journal For Multidisciplinary Research” Microscopic hair analysis is important in forensics but has limitations; new technologies are improving its accuracy.
January 2025 in “Antioxidants” SHED-CM can reduce hair graying and protect against damage from X-rays.
Gray hair affects hair's movement and appearance, making it less bouncy and more wavy.
January 2006 in “Chinese Journal of Medical Aesthetics and Cosmetology” Microencapsulated human hair cells can successfully grow new hair follicles in mice.
Daily hair care may cause holes in hair fibers.
September 1961 in “Archives of Dermatology” Colchicine causes hair loss by damaging hair follicles.
99 citations
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April 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicles help skin immune recovery after UVB exposure.
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.
69 citations
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October 2013 in “Tissue Engineering Part A” Keratin hydrogel improves nerve regeneration and motor recovery.
64 citations
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March 2005 in “Journal of Investigative Dermatology” Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
42 citations
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March 2018 in “PLOS Biology” Autophagy is important for human hair growth and health.
40 citations
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June 2019 in “Biochemical and Biophysical Research Communications” CHIR99021 helps create human skin with hair follicles, offering hope for hair loss treatments.
32 citations
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March 2016 in “American Journal of Physical Anthropology” African hair is curled, Asian hair is thick, European hair is lighter, and chemical methods help identify hair color differences.
30 citations
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November 2005 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” The lipid in human hair follicles acts as a barrier, similar to the skin's lipid layer.
30 citations
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August 1993 in “PubMed” IL-1 alpha stops hair follicle growth and hair production.
27 citations
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January 2006 in “Colloids and Surfaces B: Biointerfaces” Researchers found that bulge cells from human hair can grow quickly in culture and have properties of hair follicle stem cells, which could be useful for skin treatments.
26 citations
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January 2016 in “Annals of Dermatology” Ecklonia cava polyphenols help increase human hair growth and reduce hair loss.
25 citations
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April 2008 in “Archives of Dermatological Research” Encapsulated human hair cells can substitute for natural hair cells to grow hair.
21 citations
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November 2017 in “Scientific Reports” Different human hair follicle stem cells grow at different rates and respond differently to a baldness-related compound.
18 citations
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July 2015 in “Journal of cosmetic dermatology” Straightening and coloring hair, especially with sodium hydroxide, greatly increases protein loss.
15 citations
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September 1999 in “British Journal of Dermatology” Epimorphin, a protein, plays a key role in the development of hair follicles in human fetuses, but it doesn't help in maintaining the stem cell population of the follicular skin layer.
14 citations
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December 2021 in “International journal of molecular sciences” Growth hormone levels affect hair growth and loss, with too much causing excess hair and too little leading to hair loss.
14 citations
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July 1983 in “Acta Dermato Venereologica” A method was developed to grow millions of hair cells from a single hair for research and storage.
13 citations
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September 2021 in “Current Issues in Molecular Biology” Dexpanthenol helps human hair follicle cells grow by preventing aging and death, and by supporting growth signals.