Hello, I will give you a short answer after reading your question, hoping to help you! Botulinum toxin, also known as botulinum endotoxin, is a bacterial endotoxin secreted by the deadly botulinum toxin, which is highly toxic. It can make muscle fibers unable to contract, leading to muscle relaxation to achieve the purpose of wrinkle removal and beauty, and the greater the toxicity, the better the wrinkle removal and beauty effect. As long as the measurement is within the specified range, injection is safer. "Botulinum toxin stovepipe" is a botulinum toxin injection on the leg!