Botox® and Dysport cosmetics diminishes or eliminates the appearance of dynamic wrinkles, because it paralyzes the underlying muscle causing the wrinkle. When injected directly into the muscle the purified Botulinum toxin type A prevents the muscle from contracting by blocking the transmission of nerve impulses to the muscle. Because the muscle cannot contract the wrinkle cannot form and it gradually diminishes. Botox® is not as effective on static wrinkles. Static wrinkles are better treated with dermal fillers.
Botox® and Dysport Cosmetics are mainly used to treat dynamic wrinkles in the upper third of the face.