September 2025 in “Chinese Journal of Plastic and Reconstructive Surgery” This review reports that while botulinum toxin shows potential mechanisms for treating androgenetic alopecia, recent high-quality trials found no significant hair density improvement compared to placebo, indicating it can't yet replace traditional treatments.
June 2024 in “Dermatology and therapy” This study reviewed recent advancements in using botulinum toxin for treating androgenetic alopecia and emphasized the need for further research to determine the most effective injection sites and depths, as current strategies show inconsistent results.
December 2016 in “The Journal of Sexual Medicine” This study reviewed the preferences and reasons for testosterone injection therapy among 53 Canadian men with hypogonadism, finding that most opted for injections due to efficacy, ease, and cost considerations.
5 citations
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September 2020 in “Journal of Cosmetic Dermatology” This study reported that weekly intramuscular dexpanthenol may improve quality of life and satisfaction with hair appearance in women with female pattern hair loss, with no side effects observed.
35 citations
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May 2012 in “Expert Opinion on Pharmacotherapy” This review summarizes current and emerging treatments for common hair loss conditions, highlighting good evidence for androgenetic alopecia but noting the lack of long-term data for alopecia areata and cicatricial alopecias.