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.
108 citations
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July 2004 in “American Journal of Pathology” Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.
86 citations
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December 2001 in “Experimental dermatology” Mutant mice help researchers understand hair growth and related genetic factors.