19 citations,
March 2013 in “Headache The Journal of Head and Face Pain” A woman's headache and hair loss were relieved by Botox injections.
February 2017 in “DOAJ (DOAJ: Directory of Open Access Journals)” Botulinum toxin type A did not help regrow hair in severe alopecia cases.
June 2024 in “Dermatology and therapy” Intramuscular injections improved hair density more than intradermal injections for treating hair loss.
April 2017 in “InTech eBooks” Many people with hair loss experience scalp pain known as trichodynia, but the causes are unclear and treatments vary.
December 2023 in “JPRAS Open” Botulinum Toxin A may help with hair growth and has some side effects; more research is needed.