Scientifically known as botulinum toxin type A, BOTOX works by blocking the signal from the nerve to the injected muscles so it can no longer contract (tighten) as forcefully, which in turn causes wrinkles to relax and soften.
As people age, their skin gets thinner, drier, and losses elasticity. This leads to wrinkles, creases, and lines on the skin. Facial expressions such as frowning and smiling also contribute in wrinkle formation.
BOTOX works as a muscle relaxant which makes it effective at improving such expression lines (both statis and dynamic).
When injected strategically, BOTOX can be used to provide lifting and smoothing effects where required.