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.
June 2008 in “Toxicon” Botulinum toxin type A reduces itch and inflammation from histamine and may help treat certain skin conditions and hair loss.
4 citations
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November 2015 in “JAAD case reports” Substance P may play a role in the inflammation seen in keratosis follicularis spinulosa decalvans.
127 citations
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December 2005 in “Experimental Dermatology” Stress can stop hair growth in mice, and treatments can reverse this effect.
April 2024 in “Journal of applied cosmetology” Botulinum toxin shows promise for treating skin conditions but needs more research for safety and effectiveness.