January 2005 in “Pharmaceutical Journal of Chinese People's Liberation Army” Ginseng extract can enhance hair growth at certain concentrations.
January 2002 in “Journal of Clinical Dermatology” Minoxidil boosts hair growth at low doses but slows it at high doses.
Spironolactone does not change hair growth.
57 citations
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February 1994 in “Experimental dermatology” Melatonin affects mouse skin and may regulate skin functions.
508 citations
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February 2007 in “Cell” Epithelial stem cells are crucial for tissue renewal and repair, and understanding them could improve treatments for damage and cancer.