Efficacy of Botulinum Toxin Type A in Reducing Facial Wrinkles: A Comprehensive Review of Clinical Outcomes
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Objective
This literature review synthesizes current evidence regarding the efficacy and safety of Botulinum Toxin Type A (BoNT-A) for the treatment of facial wrinkles. The increasing demand for minimally invasive cosmetic procedures has positioned BoNT-A as a leading intervention for managing facial rhytids.
Methods
This review examines clinical outcomes across various facial areas, including glabellar lines, crow’s feet, and forehead lines, considering different BoNT-A formulations, dosages, and injection techniques. The methodology involved a comprehensive search of major electronic databases for studies published between 2014 and 2024.
Results
Findings indicate that BoNT-A is consistently effective in reducing the severity of dynamic facial wrinkles, with high patient satisfaction reported across different treatment areas and formulations. While generally safe, potential adverse events such as eyelid ptosis and the risk of immunogenicity with repeated use are important considerations.
Conclusion
The review highlights the need for ongoing research to optimize treatment protocols, explore long-term effects, and compare the efficacy of different BoNT-A products and emerging alternatives.
