Wrinkles are caused by repeated contraction of the facial muscles. Every time we smile, frown, laugh, talk our muscles contract. 

Botox/Xeomin block signals from nerves to the muscle and temporarily prevent muscle contraction, making existing wrinkles relax and soften and preventing new wrinkle formation.  Botox/Xeomin effects are not permanent and typically last for 3-6 months, but they can be a powerful anti-aging tool.