Merz purified botulinum toxin that blocks nerve signals to soften moderate-to-deep dynamic wrinkles and help prevent new creases.

Xeomin botulinum toxin is developed by Merz Pharmaceuticals in Germany and certified by the US FDA and EU CE. Xeomin is a new-generation purified botulinum toxin that effectively blocks the nerve-cell signalling that causes muscle contraction. It is designed to soften moderate-to-deep wrinkles, relaxing the muscles that produce dynamic lines so that facial contours become smoother, and helping prevent new wrinkles from forming.
Usually over several days to about a week.
About 3–6 months, individually variable.
It interrupts nerve signals that trigger muscle contraction.
Merz (Germany), with FDA and CE clearances.