January 2026 in “Applied Sciences” Cyclic ADP-ribose helps regulate calcium and signals that promote hair growth in hair follicle cells.
September 1998 in “Journal of the European Academy of Dermatology and Venereology” Different racial groups have varying keratin proteins, affecting hair texture and strength.
375 citations
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June 2013 in “Biochimica et biophysica acta. Molecular cell research” Cornification is how skin cells die to form the protective outer layer of skin, hair, and nails.
33 citations
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January 1997 in “Journal of Investigative Dermatology” 4 citations
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December 1995 in “Archives of Dermatological Research” 22 citations
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January 1996 in “Archives of Dermatological Research” 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.
23 citations
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February 1993 in “Journal of Investigative Dermatology” 186 citations
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December 2012 in “Current opinion in cell biology” Keratin proteins are increasingly recognized as important for cell health and are linked to many diseases.
3 citations
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April 2014 in “Journal of Dietary Supplements” CARI ONE helps start hair growth and makes hair follicles bigger and more numerous.
7 citations
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March 1993 in “International Journal of Oncology” Basal cell carcinoma shows keratin patterns similar to hair follicle structures.
September 2017 in “Journal of Investigative Dermatology” Ceramide may help delay hair aging by restoring stressed hair cells.
7 citations
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December 2020 in “Clinical and Experimental Dermatology” Cepharanthine may help hair growth by boosting cell growth and VEGF expression.
30 citations
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November 2020 in “Journal of Advanced Research” Conditioned medium from keratinocytes can improve hair growth potential in cultured dermal papilla cells.
Ceramide may help delay hair aging by restoring stressed hair cells.
January 1990 in “The Nishinihon Journal of Dermatology” Follicular structures help differentiate keratoacanthoma from squamous cell carcinoma.
January 2014 in “Journal of Investigative Dermatology” Proteins like aPKC and PDGF-AA, substances like adenosine and ATP, and adipose-derived stem cells all play important roles in hair growth and health, and could potentially be used to treat hair loss and skin conditions.
7 citations
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February 1998 in “Polymer journal” Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
356 citations
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December 1986 in “The journal of cell biology/The Journal of cell biology” Hair and nail cells share similar proteins, indicating a common differentiation pathway.
109 citations
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September 2011 in “Human molecular genetics online/Human molecular genetics” New treatments targeting specific genes show promise for treating keratin disorders.
7 citations
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September 2020 in “International Journal of Cosmetic Science” Different sizes of keratin peptides can strengthen hair, with smaller ones possibly increasing volume and larger ones repairing damage.
1 citations
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January 2014 Crataegus pinnatifida extract promotes hair growth in mice.
23 citations
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February 2004 in “British Journal of Dermatology” Keratin in mouse hair follicles is complex and plays specific roles.
115 citations
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August 2014 in “Jo'jig gonghag gwa jaesaeng uihag/Tissue engineering and regenerative medicine” Human hair keratin can be used in many medical applications.
January 2026 in “Biomaterials and Biosystems” Keratin from chicken feathers can be safely used on damaged skin.
3 citations
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March 2023 in “International journal of molecular sciences” Keratin protein production in cells is controlled by a complex system that changes with cell type, health, and conditions like injury or cancer.
December 2018 in “IntechOpen eBooks” Neurohormones help control skin health and could treat skin disorders.
39 citations
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January 1979 in “Journal of the Society of Cosmetic Scientists of Korea” Surfactants can protect or harm hair, skin, and nails, depending on their type and use.
May 2026 in “International Journal of Cosmetic Science” A plant-based treatment from Avena strigosa seeds effectively repairs and strengthens damaged hair.
24 citations
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February 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Two new proteins, hKAP1.6 and hKAP1.7, are found in the hair follicle cortex.