Glycyrrhizic acid and licorice extract can significantly reduce unwanted hair growth.
30 citations
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March 2008 in “Wound Repair and Regeneration” Estrogen affects scalp cell types differently, enhancing some wound healing processes.
10 citations
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December 1990 in “Archives of Dermatological Research” 102 citations
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April 2014 in “PloS one” Wharton’s Jelly stem cells from the umbilical cord improve skin healing and hair growth without scarring.
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.
78 citations
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June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” TGF-β1 from dermal papilla cells suppresses hair growth, and targeting it may help treat androgenetic alopecia.
77 citations
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February 2001 in “Journal of Dermatological Science” HGF activator helps convert HGF to its active form, promoting hair growth.
72 citations
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December 1983 in “Journal of Investigative Dermatology” Minoxidil helps hair cells live longer and grow longer.
63 citations
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January 1984 in “Journal of Investigative Dermatology” Minoxidil promotes hair growth by increasing cell division and DNA synthesis.
56 citations
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July 2005 in “Experimental Dermatology” Injected human hair follicle cells can create new, small hair follicles in skin cultures.
19 citations
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September 2011 in “Journal of Dermatological Science” TGF-β1 increases androgen receptor activity in hair loss, but Hic-5/ARA55 can counter this effect.
8 citations
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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.
208 citations
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January 2013 in “Lab on a Chip” The Multi-Organ-Chip improves the growth and quality of skin and hair in the lab, potentially replacing animal testing.
174 citations
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April 2005 in “The American journal of pathology (Print)” Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.
149 citations
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March 2004 in “Journal of Dermatological Science” Minoxidil boosts hair growth by increasing cell production and survival.
122 citations
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April 2011 in “European Journal of Pharmaceutics and Biopharmaceutics” Particles around 100 nm can penetrate and stay in hair follicles without passing through healthy skin, making them safe for use in topical products and useful for targeted drug delivery.
111 citations
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June 2002 in “The EMBO Journal” Too much Smad7 can cause serious changes in skin tissues, including problems with hair growth, thymus shrinkage, and eye development issues.
102 citations
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February 2008 in “The FASEB Journal” One minoxidil-sensitive potassium channel exists in human hair follicles.
97 citations
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September 2011 in “British Journal of Dermatology” The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.
91 citations
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May 2003 in “American Journal of Pathology” Prolactin affects hair growth cycles and can cause early hair follicle regression.
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April 2016 in “Science Advances” Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.
69 citations
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August 1999 in “Developmental biology” The nude gene causes skin cell overgrowth and improper development, leading to hair and urinary issues.
63 citations
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September 2009 in “Regenerative Medicine” Scientists found a way to grow human hair cells in a lab that can create new hair when transplanted.
58 citations
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January 2006 in “Skin Pharmacology and Physiology” High levels of testosterone and 5α-DHT can lead to cell death in cells important for hair growth.
53 citations
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October 2014 in “Free radical biology & medicine” Defective mitochondrial DNA replication causes aging symptoms and increased oxidative damage in mice.
47 citations
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December 2019 in “Biomaterials” Scientists have created a new hair loss treatment using ultrasound to deliver gene-editing particles, which resulted in up to 90% hair regrowth in mice.
46 citations
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December 1992 in “Journal of Investigative Dermatology” Minoxidil decreases LH expression, while hydralazine has mixed effects on prolyl and lysyl hydroxylase activities.
41 citations
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November 2013 in “Experimental Dermatology” Leptin, a hormone, is important for starting hair growth.
39 citations
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August 2018 in “Scientific reports” Claudin-1 is important for the barrier function and growth of hair.
33 citations
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December 2004 in “Differentiation” Mouse amnion can turn into skin and hair follicles with help from certain cells and factors.