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.
67 citations
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April 2014 in “Biochemical Journal” Ceramide synthase 4 deficiency in mice leads to hair loss due to altered sebum lipids.
April 2021 in “The journal of investigative dermatology/Journal of investigative dermatology” CTCF protein is essential for skin and hair follicle development in mice.
February 2024 in “Scientific Reports” Cinnamic acid may help hair grow by activating oxytocin receptors.
6 citations
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December 2018 in “International Journal of Cosmetic Science” CARB is a strong barrier in human hair that prevents dye penetration.
April 2022 in “Biomedicine & Pharmacotherapy” CXCL12 protein slows down hair growth through its receptor CXCR4. Blocking this can potentially increase hair growth.
48 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.
October 2025 in “Cell Reports” Regulatory T cells help hair growth by using the Cxcr4-Cxcl12 pathway.
January 2026 in “Applied Sciences” Cyclic ADP-ribose helps regulate calcium and signals that promote hair growth in hair follicle cells.
42 citations
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June 2019 in “Aging” 3,4,5-tri-O-caffeoylquinic acid promotes hair growth by activating the β-catenin pathway.
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.
1 citations
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January 2022 in “Clinical Cases in Dermatology” A woman with CCCA has hair loss due to factors like straighteners and tight hairstyles, and treatments include steroids and avoiding certain hair products.
1 citations
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August 2015 in “PubMed” Human hair's strength comes from a honeycomb-like structure and macrofibrils.
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.
97 citations
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March 2002 in “Molecular and cellular biology” Mutant CDP/Cux protein causes hair defects and reduced male fertility in mice.
3 citations
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March 2020 in “International Journal of Molecular Sciences” Thymosin β4 helps increase hair growth in Cashmere goats.
29 citations
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January 2013 in “The journal of investigative dermatology/Journal of investigative dermatology” P-cadherin is crucial for hair follicle pigmentation but not skin pigmentation.
15 citations
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May 2010 in “International Journal of Cosmetic Science” The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.
January 2008 in “Chinese Journal of Spectroscopy Laboratory” Cysteine formation on hair indicates damage, best detected at pH 4.5.
2 citations
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August 2020 in “Clinical, Cosmetic and Investigational Dermatology” The hair-growth formula with L-cystine helps protect and grow hair cells.
April 2017 in “Journal of Investigative Dermatology” The protein CTCF is essential for skin development, maintaining hair follicles, and preventing inflammation.
314 citations
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April 2010 in “Developmental Cell” β-catenin in the dermal papilla is crucial for normal hair growth and repair.
50 citations
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March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
February 2023 in “Frontiers in Pharmacology” Water extract of Cacumen Platycladi helps hair growth by activating specific cell pathways.
November 2022 in “Journal of Investigative Dermatology” The fragrance cyclohexyl salicylate helps promote hair growth and increase hair stem cell numbers.
62 citations
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December 2008 in “Journal of structural biology” Hair curvature in Japanese people is linked to specific cell types and filament arrangements in the hair cortex.
August 2024 in “Archives of Dermatological Research” CHI3L1 and CXCL5 proteins help promote hair growth.
June 1996 in “Journal of Dermatological Science”
12 citations
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November 1987 in “Pediatric dermatology” Four children had unmanageable pale blond hair due to uncombable-hair syndrome.
1 citations
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January 2007 in “AIP conference proceedings” High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.