Younger patients have been increasingly hopping on the Botox bandwagon as a preventative measure—even before the wrinkles appear or deepen. That’s why dermatologists can’t recommend the best age to start or try Botox, since it depends on your goals, your facial expressions, and your preference. If all you see when you look at a photo of yourself is that forehead wrinkle instead of your bright eyes or smile, it might make you happier to get the wrinkle taken care of. “Each time we raise our eyebrows, or scowl by bringing our eyebrows together, the wrinkles in these locations get deeper and more numerous. It happens slowly over a long period of time, so you don’t notice it on a daily basis,” Dr. Tutela says. “But if you look at the horizontal wrinkles in your forehead when you are not raising your eyebrows, you will see an increase in these wrinkles when you do raise your brows. If you then hold that raised brow position for 10 seconds, you will notice when you relax, your forehead wrinkles look deeper and more numerous. Botox prevents this from happening.” It’s almost never too early to start a good anti-aging regimen. Learn the most in-demand cosmetic treatments across the US.
As with all therapeutic proteins, there is a potential for immunogenicity. The detection of antibody formation is highly dependent on the sensitivity and specificity of the assay. Additionally, the observed incidence of antibody (including neutralizing antibo dy) positivity in an assay may be influenced by several factors including assay methodology, sample handling, timing of sample collection, concomitant medications, and underlying disease. For these reasons, comparison of the incidence of antibodies to onabotulinumtoxinA in the studies described below with the incidence of antibodies in other studies or to other products may be misleading.
BOTOX blocks neuromuscular transmission by binding to acceptor sites on motor or sympathetic nerve terminals, entering the nerve terminals, and inhibiting the release of acetylcholine. This inhibition occurs as the neurotoxin cleaves SNAP -25, a protein integral to the successful docking and release of acetylcholine from vesicles situated within nerve endings. When injected intramuscularly at therapeutic doses, BOTOX produces partial chemical denervation of the muscle resulting in a localized reduction in muscle act ivity. In addition, the muscle may atrophy, axonal sprouting may occur, and extrajunctional acetylcholine receptors may develop. There is evidence that reinnervation of the muscle may occur, thus slowly reversing muscle denervation produced by BOTOX.
The potency Units of BOTOX® are specific to the preparation and assay method utilized. They are not interchangeable with other preparations of botulinum toxin products and, therefore, Units of biological activity of BOTOX® cannot be compared to nor converted into Units of any other botulinum toxin products assessed with any other specific assay method.

Ratings on RealSelf.com (www.RealSelf.com) show a satisfaction rate of 65% for Botox, which is on par with other treatments such as Restylane, Juvederm, and Perlane and slightly higher than Xeomin and Dysport. Longer-term treatments, such as Ultherapy facial tightening and Liposuction/SmartLipo achieve ratings in the 80% and above area, while others such as CoolSculpting (Zeltiq) achieve ratings in the 70% area. This may reflect upon the short-term nature of all botulinum toxins versus the longer-term nature of these other procedures.


Temporary bruising is the most common side effect of Botox. Headaches, which resolve in 24-48 hours, can occur, but this is rare. A small percentage of patients may develop eyelid drooping. This usually resolves in three weeks. This usually happens when the Botox moves around so you shouldn't rub the treated area for 12 hours after injection or lay down for three to four hours.
After a muscle has been injected, the nerves still send the signal to the muscle to contract, and the acetylcholine is still released, but is unable to bind to the muscle, resulting in a reduction of muscle activity and temporarily preventing contraction of the muscles that cause frown lines. The binding process typically begins within about 48 hours from the time it is injected into the muscle, and results typically become noticeable within 7 to 10 days. While results are often most noticeable in dynamic wrinkles (wrinkles that appear when a muscle contracts), it can also help soften wrinkles that are present even without muscle contraction. If you’re serious about improving the appearance of moderate to severe frown lines, it may be just the right treatment option for you.
Spread of toxin effects. The effect of botulinum toxin may affect areas away from the injection site and cause serious symptoms including: loss of strength and all-over muscle weakness, double vision, blurred vision and drooping eyelids, hoarseness or change or loss of voice, trouble saying words clearly, loss of bladder control, trouble breathing, and trouble swallowing.
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