Botox® is the trade name for Botulinum Toxin, a neurotoxin in the form of a purified protein.
The mechanism of action for of Botox® is really quite simple; it is injected into facial muscles but really doesn’t affect the muscle at all. Botox® works by blocking the transmitters between the motor nerves that innervate the muscle.
The areas typically treated with Botox® for wrinkles are the forehead, between the eyes (glabellar region), around the corners of the eyes (crow’s feet) and around the lips (smokers lines or gummy smile). There is no loss of sensory feeling in the muscles. Once the motor nerve endings are interrupted, the muscle cannot contract, causing wrinkles in the skin to smooth. The effects of Botox® last approximately three to four months, at which time the patient will require retreatment again.
In 2002, the same formulation – under the label BOTOX® Cosmetic – was approved by the US Food and Drug Administration (FDA) for treatment of moderate to severe frown lines between the brows in people ages 18 to 65.
The lines that appear between your brows actually result from muscle movement and the passage of time. When powerful muscles between the brows contract, they draw the brows together, causing the skin to fold or furrow. As skin becomes less elastic with age, those folds or furrows result in stubborn lines.
The most common side effects following injection include temporary eyelid droop and nausea. Localized pain, infection, inflammation, tenderness, swelling, redness, and/or bleeding/bruising may be associated with the injection.
Will I still be able to make facial expressions? Although you may see a marked improvement, a treatment with BOTOX® Cosmetic does not make you look like you’ve “had work done.” The muscle activity that causes frown lines is simply reduced, so you can still frown or look surprised without the wrinkles and creases between your brows.
During treatment, very low doses of BOTOX® Cosmetic are administered via a few tiny injections directly into the muscles responsible for frown lines between the brows. By blocking the release of a chemical that causes these muscles to contract, BOTOX® Cosmetic enables them to relax. The effects are very localized and, when administered by an experienced physician, do not affect your ability to smile, laugh, or otherwise show expression. BOTOX® Cosmetic is the only product of its kind that has been approved for use in this area
You can expect to see results within days after your treatment, and the appearance of the area between your brows may continue to improve for up to a week.facial expressions? Although you may see a marked improvement, a treatment with BOTOX® Cosmetic does not make you look like you’ve “had work done.” The muscle activity that causes frown lines is simply reduced, so you can still frown or look surprised without the wrinkles and creases between your brows.