Dysport (abobotulinumtoxinA) is a prescription injectable neurotoxin used to temporarily reduce moderate to severe frown lines between eyebrows, muscle stiffness (spasticity) in adults and children, and other dynamic wrinkles by relaxing muscles, offering quick results (days to weeks) that can last several months. It works by blocking nerve signals that cause muscle contractions, making muscles relax, and is known for diffusing more easily, making it good for larger areas like foreheads.