The book is an attempt to summarize the journey of Botulinum Toxin from a deadly toxin to a miraculous drug, Which includes:--Its history and its evolution in the past 30 years.-Dosage.-Injection in the field of cosmetology.-Injection sites.-Its uses as a therapeutic substance in treating various disorders etc, as it offers a minimally invasive approach to manage and treat selected suitable cases with minimum complications.-Recent advances.-Its adverse effects.