Botulinum toxin, also known as Botox, is a neurotoxin that acts as a neuromuscular blocking agent. It is an FDA-approved drug in the United States and has been proven to quickly smooth dynamic wrinkles, such as forehead lines, frown lines, and crow's feet. Botulinum toxin is a protein extracted through high-tech purification from Botulinum Toxin Type A. It can reduce muscle contraction tension, helping facial muscles relax and thereby smoothing facial expressions. When injected into muscles, it can relax overactive muscles, eliminate wrinkles, and prevent the formation of lines, all while reducing excessive muscle movement for a more youthful appearance.