September 2004 in “Experimental Dermatology” Stress and certain chemicals affect hair growth by interacting with the immune and nervous systems.
105 citations
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May 2011 in “The journal of investigative dermatology/Journal of investigative dermatology” Activating TRPV3 stops human hair growth.
49 citations
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April 2006 in “Journal of Investigative Dermatology” TRPV1 helps regulate hair growth cycles.
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.
September 2004 in “Experimental dermatology” Melatonin directly affects mouse hair follicles and may influence hair growth.