This study found that in mice with alopecia areata, a single subcutaneous injection of botulinum neurotoxin serotype A significantly reduced hair loss and stimulated hair follicle regeneration.
November 2025 in “Journal of Microbiology and Biotechnology” In this study, combining Botulinum toxin type A with Platelet-rich plasma was found to enhance hair follicle growth and reconstruction, potentially through inflammation reduction and activation of the Wnt/β-catenin pathway via STMN1 protein modulation.
February 2024 in “Health Sciences” This review discusses the non-cosmetic uses of botulinum neurotoxin A, including its effectiveness for idiopathic hyperhidrosis and potential use for androgenic alopecia, and reports no new clinical results; the authors highlight the need for more clinical trials.
March 2022 in “IntechOpen eBooks” This chapter discusses the potential therapeutic applications of Botulinum toxin for various non-cosmetic skin conditions, such as acne, rosacea, and hyperhidrosis, highlighting case reports and some randomized controlled trials that indicate promise in alleviating discomfort, inflammation, and excessive sweating.
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February 2021 in “Toxins” This review concluded that botulinum toxins have various potential off-label uses for dermatological conditions, but further research is needed to fully establish their efficacy and safety in these applications.