BOTOX® is a highly purified toxin derived from the bacteria clostridium botulinum. It works by blocking receptor sites on muscles and preventing acetylcholine, released by nerves, from stimulating muscles to contract.

BOTOX® is utilized in the skin in very small and safe amounts to selectively block the function of certain facial muscles that are involved in wrinkle formation. Best locations to inject BOTOX® are frown lines, forehead lines and crows feet lines.

The first treatment involves injection into strong thick muscle and therefore usually only lasts three to four months. At subsequent sessions the muscle is smaller and weaker (since it has not been used) and the injections can last five to six months. The BOTOX® action also wears off gradually so there is ample time to reschedule another appointment.

Side effects can occur, but are uncommon and last only temporarily. Occasionally some slight drooping of the eyebrow can occur, but this can be fixed by injecting the opposing upper eyelid muscle that is pulling down the brow. Temporary bruising, as with any needle puncture procedure can occur.

More uncommon, mild headaches, numbness, tingling or a feeling of heaviness may occur; however these symptoms disappear in one to two days.

Link to Botox® Cosmetic website.