41 citations
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September 2011 in “Journal of Ethnopharmacology” Panax ginseng extract helps mice grow hair.
Hairlessness in mammals is caused by combined changes in genes and regulatory regions.
158 citations
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December 2002 in “Development” Msx2-deficient mice experience irregular hair growth and loss due to disrupted hair cycle phases.
12 citations
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May 2012 in “Endocrinology and metabolism/American journal of physiology: endocrinology and metabolism” Human scalp hair follicles can be used to study how prolactin affects hair growth and cell death.
8 citations
,
September 1993 in “British journal of dermatology/British journal of dermatology, Supplement” A new method helps isolate key hair components to study hair growth and loss.
The 16th-century mummy's hair was well-preserved due to a calcium coating.
January 2026 in “PLoS Biology” ARHGEF3 is essential for proper hair follicle development in mice.
October 2024 in “SPIRE - Sciences Po Institutional REpository” Glypicans help hair follicle stem cells differentiate by interacting with specific receptors, influencing hair growth.
May 2026 in “Journal of Proteomics”
134 citations
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September 2008 in “Lasers in surgery and medicine” Low fluence photoepilation temporarily removes hair by targeting the hair follicle's pigmented area without severe damage.
127 citations
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December 2007 in “Journal of Investigative Dermatology” Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
Wnt10b promotes hair growth, while SFRP2 inhibits it in Wanxi Angora rabbits.
23 citations
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November 2011 in “Journal of the European Academy of Dermatology and Venereology” Hair loss is a rare but recognized symptom of pemphigus vulgaris, with patients usually regrowing hair after treatment.
1 citations
,
November 2023 in “International Journal of Molecular Sciences” SOX18 helps sheep hair cells grow by activating a specific cell growth pathway.
6 citations
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February 2016 in “American Journal of Dermatopathology” The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.
January 2025 in “Biochemical Pharmacology” Peficitinib can turn human fibroblasts into cells that help grow hair.
29 citations
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February 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Loss of Fz6 disrupts hair follicle and associated structures' orientation.
37 citations
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December 2001 in “Journal of Investigative Dermatology” Leptin may play a role in hair growth and hair follicle health.
July 2024 in “Frontiers in Pharmacology” Pilose antler extracts help hair growth by activating hair follicle stem cells.
May 2009 in “Medical and surgical dermatology/Medical & surgical dermatology” Hair and nail conditions can stabilize or improve over time, and new treatments show promise.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
December 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” Hedgehog signaling controls hair follicle development and can affect skin cancer growth.
2 citations
,
October 2010 in “Journal of dermatological treatment” External treatments can change hair growth patterns in nude mice.
20 citations
,
September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
December 2024 in “arXiv (Cornell University)” The ideal haircut routine can be determined using a model based on hair growth and regular haircuts.
April 2022 in “Research Square (Research Square)” Researchers created a stable rabbit cell line for hair research that doesn't age quickly or become cancerous.
4 citations
,
November 2016 in “The Journal of Dermatology” Pili torti hair is fragile due to loose keratin filaments and weak disulfide bonds.
January 2026 in “Cosmoderma” A 9-year-old girl has a rare hair disorder causing beaded, sparse hair.
54 citations
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January 2009 in “Development” β-catenin, Shh, and Bmp signaling control hair follicle development.