Our facial expressions change as we contract or relax our muscles. This is caused by the brain sending a signal to our muscles via our nerve endings. Botulinum toxin is a naturally occurring protein produced by the bacterium Clostridium botulinum. When a highly diluted dose of Botulinum toxin is injected by a fine needle into a specific muscle it blocks the signal from the nerve to the muscle, inhibiting the movement of that muscle.
This inhibition is not permanent and requires maintenance treatments to sustain the result. After treatment, the skin in and around the area will look more smooth and the appearance of wrinkles and frown lines will be reduced.
The rest of your face will not be affected, and you will still be able to laugh, smile and frown but with less wrinkling of the skin in the areas treated. The most dramatic responses to anti-wrinkle (Botox®) injections are seen in patients aged 30 to 50 years.