Botox consists of small injections with various forms of botulinum toxin to temporarily paralyze muscle activity. Carefully placed Botox injections can effectively reduce the appearance of facial lines and wrinkles and restore a youthful appearance to facial skin. Results usually last three to six months.
Why it's done
Botulinum toxin injections block certain chemical signals from nerves, mostly signals that cause muscles to contract. The most common use of these injections is to temporarily relax the facial muscles that underlie and cause wrinkles, such as:
Frown lines between the eyebrows
Crow's-feet, the lines that fan out from the corners of the eyes