54 citations
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January 2013 in “BMC Complementary and Alternative Medicine” Thuja orientalis hot water extract may help hair grow by starting the growth phase and improving hair follicle development.
49 citations
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November 2014 in “Journal of Medicinal Food” Red Ginseng Extract may help human hair grow by activating growth pathways and blocking negative effects of certain hormones.
48 citations
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December 2004 in “Differentiation” Tooth papilla cells can help regenerate hair follicles and grow hair.
46 citations
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May 1986 in “Seminars in Reproductive Medicine” Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.
45 citations
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September 2012 in “Life Sciences” Aconiti Ciliare Tuber extract may help hair grow by activating a specific cell signaling pathway.
39 citations
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October 2013 in “Plastic and Reconstructive Surgery” Human alpha defensin 5 helps heal wounds, reduce bacteria, and grow hair on burned skin.
32 citations
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April 2016 in “Journal of Investigative Dermatology” STAT5 activation is crucial for starting the hair growth phase.
32 citations
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December 1999 in “Journal of Investigative Dermatology Symposium Proceedings” 17-β-Estradiol applied to the skin stops hair growth, while ICI 182 780 helps hair grow in mice.
28 citations
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February 2016 in “F1000Research” Understanding glycans and enzymes that alter them is key to controlling hair growth.
27 citations
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June 2023 in “Nature” Senescent melanocytes can boost hair growth by activating hair stem cells.