This study found that Botox® was most effective at a 25 U/ml concentration, while Dysport® and Neurobloc® were optimal at 100 U/ml for producing anhidrotic areas after injections.
Botulinum toxin-A may increase hair growth and reduce hair loss in men with baldness, and injecting near blood vessels can improve pain relief and last longer.
May 2018 in “Journal of Sun Yat-sen University” This study found that local injections of botulinum toxin A improved hair density in male patients with androgenetic alopecia over a 6-month period, showing similar effectiveness to the control group.
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January 2016 in “Skin appendage disorders” This study reports that women receiving periodic injections of botulinum toxin type A for forehead wrinkles may experience frontal alopecia, with progressive hairline recession observed in the cases studied.
December 2024 in “PubMed”
