56 citations,
November 1993 in “Journal of The American Academy of Dermatology” Capsaicin cream quickly relieved itching in two patients with brachioradial pruritus.
4 citations,
March 2022 in “Journal of cosmetic dermatology” The mixed preparation helped hair regrowth but wasn't better than minoxidil.
April 2003 in “Journal of Clinical Dermatology” 174 citations,
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.
3 citations,
July 2013 in “Bioscience, Biotechnology, and Biochemistry” Chinese black tea extract helped mice grow hair, especially when combined with capsaicin.