95 citations
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January 2012 in “British Journal of Dermatology” Androgens block hair growth by disrupting cell signals; targeting GSK-3 may help treat hair loss.
95 citations
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July 2010 in “Genes & development” Notch/CSL signaling controls hair follicle differentiation through Wnt5a and FoxN1.
95 citations
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July 2006 in “British Journal of Dermatology” Vitamin D receptors in hair follicles change with the hair cycle, affecting hair growth.
94 citations
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September 2014 in “Therapeutic Delivery” Nanoparticles can improve skin treatments by better targeting hair follicles, but more research is needed for advancement.
94 citations
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May 2011 in “BJCP. British journal of clinical pharmacology/British journal of clinical pharmacology” Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.
94 citations
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February 1994 in “The journal of investigative dermatology/Journal of investigative dermatology” EGF makes hair follicles grow longer but stops hair production.
93 citations
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July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
92 citations
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December 2005 in “The Journal of clinical investigation/The journal of clinical investigation” Human hair follicle stem cells can be isolated using specific markers for potential therapeutic use.
92 citations
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June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
91 citations
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April 2011 in “Journal of Ethnopharmacology” Polygonum multiflorum extract helps grow hair by activating certain hair growth signals in mice.