September 2023 in “Journal of the American Academy of Dermatology” Curly/coily hair products are more expensive than straight hair products.
The naked mutation in mice causes hair loss and helps identify keratin genes.
39 citations
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August 2018 in “Scientific reports” Claudin-1 is important for the barrier function and growth of hair.
50 citations
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January 1986 51 citations
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January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
December 2025 in “IP Indian Journal of Clinical and Experimental Dermatology”
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.
January 2005 in “Chinese Journal of Veterinary” Hairless mice lose hair by 3-4 weeks, develop thicker, folded skin, and show pigmentation differences.
11 citations
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January 1997 in “Journal of Dermatological Science” A new protein linked to hair strength was identified, aiding in understanding brittle hair conditions.
86 citations
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June 1998 in “Journal of Investigative Dermatology” The hairless gene mutation causes baldness by disrupting hair follicle structure.
24 citations
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October 2017 in “Scientific reports” Changing light exposure can affect hair growth timing in goats, possibly due to a key gene, CSDC2.
14 citations
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January 2015 in “Genetics and molecular research” The transition from growth to regression in Cashmere goat hair follicles involves changes in expression of genes related to keratin and cell differentiation.
January 2021 in “Research Square (Research Square)” Rabbits with high wool production have more hair follicles, influenced by specific long noncoding RNAs.
128 citations
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March 1989 in “Experimental Cell Research” Hoxc13 is important for hair and tongue development by controlling hair keratin genes.
1 citations
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January 2020 in “Veterinariya Zootekhniya i Biotekhnologiya” Long-haired cats have thinner skin where hair is thicker, and all have unique collagen patterns.
21 citations
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April 1982 in “Genetics Research” Mice with the naked gene have missing or abnormal hair cells.
4 citations
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August 2023 in “Nature Communications” Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.
26 citations
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January 1964 in “Experimental Cell Research” 2 citations
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February 2021 in “FEBS open bio” Human hair keratins K85 and K35 create unique filament patterns important for early hair formation.
November 2025 in “Skin Health and Disease” Autosomal recessive woolly hair is rare and involves tightly coiled hair without other health issues.
1 citations
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December 2024 in “Methods in molecular biology” Hair proteins are complex and provide valuable genetic and biological information.
44 citations
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October 1990 in “Archives of Dermatological Research” The connective tissue around hair follicles changes structure throughout the hair cycle.
1 citations
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April 2017 in “Journal of Investigative Dermatology” CCL5 is important for the hair growth potential of human dermal papilla cells.
85 citations
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February 1989 in “Journal of The American Academy of Dermatology” Children with loose anagen hair have easily pluckable hair due to root sheath problems, and it might improve without treatment.
September 2025 in “Cosmetics” Lipid content and structure affect water absorption in different hair types.
January 2002 in “Proceedings of The Japanese Society of Animal Models for Human Diseases” Keratin2-6g is crucial for hair follicle development, with mutations causing cell degeneration and vacuolation.
7 citations
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November 2004 in “International Journal of Cosmetic Science” Hair breaks differently when wet or dry and is affected by its condition and treatments like perms and bleaching.
27 citations
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August 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” Researchers found new genes involved in hair growth, which could help develop new hair treatments.
48 citations
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July 1993 in “Archives of Dermatological Research” Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
29 citations
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July 2015 in “Journal of Medical Genetics” A genetic variant in the KRT25 gene causes tightly curled hair.