Marrying ophthalmology to dermatology, Jean and Alistair Carruthers observed that blepharospasm patients who received injections around the eyes and upper face also enjoyed diminished facial glabellar lines (“frown lines” between the eyebrows), thereby initiating the highly-popular cosmetic use of the toxin.[52] Brin, and a group at Columbia University under Monte Keen made similar reports.[53] In 2002, following clinical trials, the FDA approved Botox Cosmetic, botulinum A toxin to temporarily improve the appearance of moderate-to-severe glabellar lines.[54] The FDA approved a fully in vitro assay for use in the stability and potency testing of Botox in response to increasing public concern that LD50 testing was required for each batch sold in the market.[55][56]
The toxin itself is released from the bacterium as a single chain, then becomes activated when cleaved by its own proteases.[11] The active form consists of a two-chain protein composed of a 100-kDa heavy chain polypeptide joined via disulfide bond to a 50-kDa light chain polypeptide.[35] The heavy chain contains domains with several functions: it has the domain responsible for binding specifically to presynaptic nerve terminals, as well as the domain responsible for mediating translocation of the light chain into the cell cytoplasm as the vacuole acidifies.[1][35] The light chain is a zinc metalloprotease and is the active part of the toxin. It is translocated into the host cell cytoplasm where it cleaves the host protein SNAP-25, a member of the SNARE protein family which is responsible for fusion. The cleaved SNAP-25 is unable to mediate fusion of vesicles with the host cell membrane, thus preventing the release of the neurotransmitter acetylcholine from axon endings.[1] This blockage is slowly reversed as the toxin loses activity and the SNARE proteins are slowly regenerated by the affected cell.[1]
When most people see the results of Botox, they are extremely pleased. Botox’s ability to iron out wrinkles is pretty impressive. The fine lines and wrinkles that were all you could see in the mirror appear much less severe and the overall appearance is refreshed and more relaxed and rejuvenated. Botox results typically last up to six months. Botox also acts as a preventative measure for wrinkles, as it prevents repetitive folding of the skin that come from the frequency of making expressions. By injecting Botox before wrinkles even form, you’re setting the stage for a younger look for years to come.
In general, adverse reactions occur within the first week follo wing injection of BOTOX and while generally transient, may have a duration of several months or longer. Localized pain, infection, inflammation, tenderness, swelling, erythema, and/or bleeding/bruising may be associated with the injection. Needle-related pain and/or anxiety may result in vasovagal responses (including e.g., syncope, hypotension), which may require appropriate medical therapy.
Botox often gets a bad rep for leaving patients looking a little frozen, but that's the fault of bad technique, not necessarily the procedure itself, explains Day. "In many places where it's not a trained aesthetic physician doing the injection, it's really just inject by number," she says. The problem with this is that no two faces, or even two sides of a face, are the same. "That cookie cutter, one-size-fits-all approach is what often gives these treatments a bad name," says Day.

Besides the volume of product used, Baby Botox is about the technique, says Doris Day, a board-certified dermatologist in New York City and author of Beyond Beautiful. "If you're very precise in where you put the product, you can use lower doses," she tells Allure. These super targeted micro injections deliver the more natural, tailored look Baby Botox is so coveted for.

In clinical trials, 6.5% of patients (36/552) initiated clean intermittent catheterization for urinary retention following treatment with BOTOX® 100 Units as compared to 0.4% of patients (2/542) treated with placebo. The median duration of catheterization for patients treated with BOTOX® 100 Units was 63 days (minimum 1 day to maximum 214 days) as compared to a median duration 11 days (minimum 3 days to maximum 18 days) for patients receiving placebo.
With this in mind, the average cost for treating forehead lines varies from approximately $200 to $600. Patients with fine lines or smaller facial muscles won’t require as many units of Botox to achieve a successful outcome, whereas patients with stronger facial muscles (such as pronounced corrugator muscles which cause deeper frown lines) could require more.
Allergan’s Phase 3 hypothesis for securing conditional accelerated approval is to demonstrate that CVC treatment therapeutically initiates and induces improvement in histological hepatic fibrosis without worsening of NASH resolution. Notably, establishing improvement in NASH resolution after CVC therapy in NASH is not a prerequisite for attaining FDA conditional accelerated approval. A Phase 3 interim data readout for FDA Subpart H conditional accelerated approval is anticipated possibly in H1/2019.
Dysphagia occurred in 2% of subjects in the clinical trials in the setting of administration-site reactions, eg, pain, swelling, and induration of the submental area; all cases of dysphagia resolved spontaneously (range 1-81 days, median 3 days). Avoid use of KYBELLA® in patients with current or prior history of dysphagia as treatment may exacerbate the condition.
The recommended dilution is 200 Units/4 mL or 100 Units/2 mL with preservative -free 0.9% Sodium Chloride Injection, USP (see Table 1). The lowest recommended starting dose should be used, and no more than 50 Units p er site should generally be administered. An appropriately sized needle (e.g., 25-30 gauge) may be used for superficial muscles, and a longer 22 gauge needle may be used for deeper musculature. Localization of the involved muscles with techniques such as needle electromyographic guidance or nerve stimulation is recommended.
Other side effects of BOTOX® and BOTOX® Cosmetic include: dry mouth, discomfort or pain at injection site, tiredness, headache, neck pain, eye problems: double vision, blurred vision, decreased eyesight, drooping eyelids, swelling of eyelids, dry eyes, and drooping eyebrows. In people being treated for urinary incontinence other side effects include: urinary tract infection, painful urination, and/or inability to empty your bladder on your own. If you have difficulty fully emptying your bladder after receiving BOTOX®, you may need to use disposable self-catheters to empty your bladder up to a few times each day until your bladder is able to start emptying again.
In 2005, the national average cost of a BOTOX® injection was just over $375. However, the cost of BOTOX® treatment varies from area to area. In 2005, the northeastern United States had the highest BOTOX® average cost, at just over $500, while the western states had the lowest average, at under $370. It is important to keep in mind that these statistics may be somewhat misleading, as the cost of BOTOX® injections in Los Angeles will almost certainly be higher than BOTOX® treatment price in say, a rural area of Pennsylvania.
Wrinkles, whether they be fine line or deep furrows, typically appear on areas of the body that receive a high amount of exposure to the sun. Smoking, light skin type, hairstyle, the way you dress, your occupational and recreational habits, and heredity are all factors that promote wrinkling. Medical treatments for wrinkles include antioxidants, moisturizers, alpha-hydroxy acids, and vitamin A acid. Cosmetic procedures that treat wrinkles include dermabrasion, microdermabrasion, glycolic acid peels, laser resurfacing, Botox, and fillers.

Treatment with botulinum toxins may weaken neck muscles that serve as accessory muscles of ventilation. This may result in a critical loss of breathing capacity in patients with respiratory disorders who may have become dependent upon these accessory muscles. There have been postmarketing reports of serious breathing difficulties, including respiratory failure.

The cosmetic effect of BTX-A on wrinkles was originally documented by a plastic surgeon from Sacramento, California, Richard Clark, and published in the journal Plastic and Reconstructive Surgery in 1989.[51] Canadian husband and wife ophthalmologist and dermatologist physicians, JD and JA Carruthers, were the first to publish a study on BTX-A for the treatment of glabellar frown lines in 1992.[52] Similar effects had reportedly been observed by a number of independent groups (Brin, and the Columbia University group under Monte Keen.[53]) After formal trials, on April 12, 2002, the FDA announced regulatory approval of botulinum toxin type A (Botox Cosmetic) to temporarily improve the appearance of moderate-to-severe frown lines between the eyebrows (glabellar lines).[54] Subsequently, cosmetic use of botulinum toxin type A has become widespread.[78] The results of Botox Cosmetic can last up to four months and may vary with each patient.[79] The US Food and Drug Administration approved an alternative product-safety testing method in response to increasing public concern that LD50 testing was required for each batch sold in the market.[55][56]
In clinical trials, 30.6% of patients (33/108) who were not using clean intermittent catheterization (CIC) prior to injection, required catheterization for urinary retention following treatment with BOTOX® 200 Units as compared to 6.7% of patients (7/104) treated with placebo. The median duration of postinjection catheterization for these patients treated with BOTOX® 200 Units (n = 33) was 289 days (minimum 1 day to maximum 530 days) as compared to a median duration of 358 days (minimum 2 days to maximum 379 days) for patients receiving placebo (n = 7).
Botox lasts only around three months (or more when you first start getting injections), so get ready to go in for maintenance every three to six months. Because it’s only meant to temporarily relax your muscles, it wears off over time, and you’ll notice your wrinkle start to appear again. “As skin ages, the skin loses elasticity and collagen breaks down, so constant muscle and skin contraction can create more permanent creases (wrinkles). Within a few months of injecting the botox, the body makes new acetylcholine receptors, and the nerves are able to conduct their impulses again,” Dr. Shainhouse explains. “You must use neurotoxins continuously in order to reduce muscle movement and prevent long-term skin creasing.” Find out more secrets from dermatologists about how to prevent and treat wrinkles.

But in a recent Fat Mascara podcast, NYC dermatologist Pat Wexler, MD, said this is a myth. And Dr. Matarasso falls somewhere in-between. “For aesthetic or cosmetic reasons, does a 19-year-old need this? No. Does a 26-year-old need this for aesthetic purposes? Highly doubtful. But, hey, listen, if you are like, ‘I am looking at my parents, I am looking at my genes, and I want to stay proactive,’ it is not unreasonable to introduce it in small amounts.”
Breast reconstruction. Breast reconstruction includes primary reconstruction to replace breast tissue that has been removed due to cancer or trauma or that has failed to develop properly due to a severe breast abnormality. Breast reconstruction also includes revision surgery to correct or improve the result of a primary breast reconstruction surgery.

Botox is injected in and around the head on an average of every three months. It blocks signals from nerves and paralyzes the muscles, ultimately preventing migraines. It is known to relax the muscles that usually contract during migraines. It’s also the only FDA-approved medication to prevent migraines before they even start! It’s known to prevent about nine migraines per month.
It’s not just about Botox, though. Last month, the FDA approved the first migraine-specific drug to prevent the severe headaches. Called Aimovig, the injectable med will cost $6,900 a year, according to The New York Times, plus injection fees. Because of the high costs, experts expect the new drug to be subject to step therapy policies. Stephen Silberstein, the director of the headache center at Jefferson University, told me in 2016 that he wouldn’t be surprised if insurance companies required patients to even try and fail Botox before covering the new meds (there are a few of them under development).
In my experience, this, like all other treatments we use in medicine, doesn’t benefit every patient. I find that it helps a majority of appropriate patients, that is, those patients with a diagnosis of chronic migraine who have failed not just abortive but also preventative migraine treatments. Is there sufficient benefit, however, to outweigh the cost and pain of this treatment? In the case of most of my patients, the answer is yes.
Treatment with botulinum toxins may weaken neck muscles that serve as accessory muscles of ventilation. This may result in a critical loss of breathing capacity in patients with respiratory disorders who may have become dependent upon these accessory muscles. There have been postmarketing reports of serious breathing difficulties, including respiratory failure.
Yes. The number of men receiving cosmetic treatments overall has risen by 325% over the last 20 years. And the number of men specifically choosing treatments like BOTOX® Cosmetic has also risen fast– in the past three years alone, men have received over one million botulinum toxin treatments. When surveyed, the majority of men say they want to look good and they’re bothered by the changes they see in the mirror. 80% would choose to treat their crow’s feet first, while 74% would prioritize their forehead lines, and 60% would most like to treat their frown lines.†
If the musculature of the oropharynx and esophagus are affected, aspiration may occur which may lead to development of aspira tion pneumonia. If the respiratory muscles become paralyzed or sufficiently weakened, intubation and assisted respiration may be necessary until recovery takes place. Supportive care could involve the need for a tracheostomy and/or prolonged mechanical ventilation, in addition to other general supportive care.

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Above all, I try to be gentle with myself and my children. It’s easier said than done.  Mom guilt and migraine guilt weigh heavy on my heart, and I continue to remind myself that I’m doing my best. I give myself a break as I do with my children when they’re having a bad day. I’m patient with them and try to give myself the same respect.  As a mom, it seems like my job is never done and that I can always do better. The reality is, no one is perfect, and we all have our flaws. We don’t expect our children to be perfect, and we should not expect ourselves to be. We do what we can when we can and take each day as it comes. I find joy in the smallest things and find that being grateful and mindful remind me off all the blessings I have, despite my unpredictable and chronic migraine attacks.
It may be necessary for the patient to have additional procedures, such as the use of filler substances (for example, Restylane, Perlane, Juvederm, Sculptra, or Radiesse) in order to plump up the wrinkles that are now relaxed. Additionally, it may be necessary to have two or three sessions of Botox treatment for deeper wrinkles before results become optimal. The area of the crease between the eyes is a particularly ideal area for Botox use in conjunction with filler as these fixed wrinkles don't always respond optimally to Botox alone. There is some controversy about using filler in that area as it may block veins or arteries and result in loss of blood and a scar to the area. Generally, the smaller particle fillers, such as Restylane or Juvederm Ultra, are best in the area between the eyes for this reason.
Study 2 compared 3 doses of BOTOX with placebo and included 91 patients [BOTOX 360 Units (N=21), BOTOX 180 Units (N=23), BOTOX 90 Units (N=21), and placebo (N=26)] with upper limb spasticity (expanded Ashworth score of at least 2 for elbow flexor tone and at least 3 for wrist flexor tone) who were at least 6 weeks post-stroke. BOTOX and placebo were injected with EMG guidance into the flexor digitorum profundus, flexor digitorum sublimis, flexor carpi radialis, flexor carpi ulnaris, and bic eps brachii (see Table 27).

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Allergan says Botox is well established as a drug and that the benefits and risks of toxins are well understood. "With more than 25 years of real-world clinical experience ... approximately 3,200 articles in scientific and medical journals, marketing authorizations in more than 90 markets and many different indications, Botox and Botox Cosmetic are [among] the most widely researched medicines in the world," an Allergan rep wrote in an emailed statement.
A follow-up visit is most often scheduled at around three months after injection. The team will determine if it was helpful and if the effect is wearing off. The effect on muscle spasticity by botulinum toxin is temporary and can last for up to three to five months. This also varies with the amount of toxin injected, the size of the muscle, the degree of spasticity in the muscle, and treatment such as therapy and bracing.
Two preparations of botulinum antitoxins are available for treatment of botulism. Trivalent (A,B,E) botulinum antitoxin is derived from equine sources using whole antibodies. The second antitoxin is Heptavalent (A,B,C,D,E,F,G) botulinum antitoxin, which is derived from equine antibodies which have been altered to make them less immunogenic. This antitoxin is effective against all known strains of botulism.
The cosmetic benefits came to light in the 1990s by happy coincidence. “The aesthetic indications were purely happenstance,” says board-certified surgeon and clinical professor Seth L. Matarasso, MD, who has been treating his clients with Botox since the 1990s but is not affiliated with the brand. “Dr. [Jean] Carruthers was working with patients with strabismus...[and] with diplopia [double vision], and her patients were coming in and saying, ‘Gee, my wrinkles are better.'" Soon enough, doctors were using Botox for what it is most commonly associated with today — nixing lines.
They affect 39 million folks in the U.S., 4 million of whom deal with daily pain. Chronic migraines can severely inhibit daily life, and when I started to feel like my bad days were outnumbering my good, I knew I needed to find a solution. Botox had been suggested to me multiple times before by friends, family, and doctors, and though it took quite a while to get it approved by insurance and find a provider I trusted, my migraines were making it hard to live a normal life, so I decided to try it out.

Since Botox made its first appearance in the med-spa world, a number of similar treatments have also become available. These include Dysport, another Botulinum toxin type A injectable, as well as dermal fillers (which use hyaluronic acid to plump skin) such as Juvéderm, Restylane, and Perlane. The decision to choose between Botox vs Dysport depends largely on the results you're hoping to achieve. For more information, check out the following guides:

Each vial of BOTOX contains either 50 Units of Clostridium botulinum type A neurotoxin complex, 0.25 mg of Albumin Human, and 0.45 mg of sodium chloride; 100 Units of Clostridium botulinum type A neurotoxin complex, 0.5 mg of Albumin Human, and 0.9 mg of sodium chloride; or 200 Units of Clostridium botulinum type A neurotoxin complex, 1 mg of Albumin Human, and 1.8 mg of sodium chloride in a sterile, vacuum-dried form without a preservative.
The biological blocking powers of Botox are used to treat migraines, muscular disorders, and some and bowel disorders. It can treat muscle stiffness, muscle spasms, overactive bladder, or loss of bladder control, too. It's also used to stop excessive sweating. "Botox blocks glands the same way it blocks nerves in muscles," Sobel tells SELF. However, don't expect to stop sweating entirely, he says. "You've got to sweat somewhere." What's more, Botox will last far longer in these sweaty situations since the glands are far smaller than the muscles treated, says Rowe.
Shah says that it’s harder to treat wrinkles with just Botox as they get more and more ingrained into the face. “Some people may need just a few injections, but some may require more treatments, such as laser treatments or a series of smaller procedures, which are going to cost more. Whereas if they came in five years earlier, I may have just been able to use Botox to get the same effect,” she says.
In patients who are not catheterizing, post-void residual (PVR) urine volume should be assessed within 2 weeks post-treatment and periodically as medically appropriate up to 12 weeks, particularly in patients with multiple sclerosis or diabetes mellitus. Depending on patient symptoms, institute catheterization if PVR urine volume exceeds 200 mL and continue until PVR falls below 200 mL. Instruct patients to contact their physician if they experience difficulty in voiding as catheterization may be required.
As with the injection of any medication, your body's immune system can develop antibodies to the medication, which render the drug less effective or possibly cause development of an allergy to the drug. The more frequently the drug is injected or the more quantity that is injected, the higher the risk for these antibodies to be formed against the drug.
Botulinum toxin injections are one approach to the treatment of muscle spasticity. These injections can be given with ease and have minimal side effects. They can also be used in very focal spasticity problems that involve a few muscle groups. This treatment may not be right for some patients, such as patients with severe, widespread muscle spasticity, and patients with permanent muscle contractures that have become rigid.
In some cases known as off-label use, doctors are safely administering it for conditions other than what it is officially approved for, including prostate issues, and eye-crossing (known medically as strabismus) cerebral palsy—which had my jaw on the floor. Rowe even went on to tell me it's the drug of the twenty-first century. "It's like Tylenol or aspirin," he marveled to SELF. "It's what penicillin was in the mid-twentieth century."
Significant improvements compared to placebo in the primary efficacy variable of change from baseline in daily frequency of incontinence episodes were observed for BOTOX® (100 Units) at the primary efficacy time point at week 6. Increases in maximum cystometric capacity and reductions in maximum detrusor pressure during the first involuntary detrusor contraction were also observed. These primary and secondary endpoints are shown in Table 23.
    Some skin care centers advertise low prices for Botox on a "cost per area" basis, advertising prices of $200-$300 for one area. The doctor we spoke to recommends getting price quotes on a "cost per unit" basis, because some places might be quoting lower prices but giving you smaller treatments, which may be less effective and require more frequent visits.
Botox can be bought by essentially any person with a DEA certificate. Allergan sells it in 50 and 100 unit vials. They are shipped overnight delivery on dry ice to keep the toxin effective it should be opened, reconstituted and used the same day ideally. The Botox will work best this way. Price points will change by who the injector is and what their motives are. Botox can be reconstituted so that you getting a very dilute amount of product. So a by the area approach may really only give you a small amount of product. Or you could be getting old Botox that is a week old and will not last for very long.
It's a remarkable arc for a drug that only a few years ago was associated with Hollywood cocktail parties where guests came for Bellinis and left with a forehead full of Botox injections. It highlights the advances that can occur when physicians, seeking new therapies for their patients, explore creative new uses for approved drugs--basically, real-world experiments that take place largely beyond the reach of federal regulators. That, in turn, raises questions about the risks of deploying medicines in ways that have not been fully vetted. But it happens all the time.
Besides the volume of product used, Baby Botox is about the technique, says Doris Day, a board-certified dermatologist in New York City and author of Beyond Beautiful. "If you're very precise in where you put the product, you can use lower doses," she tells Allure. These super targeted micro injections deliver the more natural, tailored look Baby Botox is so coveted for.
It is not always clear what is causing chronic migraines. BOTOX is a viable option for treating migraines, and it may be the most effective treatment for you. Migraines lead to extreme pain that impacts every aspect of life, from personal to professional. Migraines are debilitating and for some who suffer from the condition, bedrest is the only option. A BOTOX treatment for migraines is a simple procedure but could vastly improve your quality of life.
Although one cannot predict exactly who will respond, I find that those patients who are going to respond will note some improvement in headaches following the first set of injections. Repeat injection sets can be performed on the same patient no sooner than every 3 months, as long as a benefit is seen. Most insurers require that you document at least a 50% improvement in the chronic migraine frequency and/or severity for continued coverage. I usually recommend that my migraine patients have a second set of injections before deciding that this treatment modality is of no benefit to them.
BOTOX injections for migraines is a preventative treatment, rather than treating the condition with pain medication. It was FDA-approved in 2010 and is considered an appropriate treatment for adults who experience migraine headaches more than 15 days per month, for more than three months. The product blocks the release of certain brain chemicals, and it is believed that blocking these chemicals limits the nerve signals causing pain.

Think about it this way: people make facial expressions every single day, whether it's expressing an emotion (i.e. smiling) or simply out of habit (i.e. raising your brows). Making facial expressions causes temporary dynamic lines to show up in your face. These lines go away when your face returns to rest. However, as you continue to make facial expressions, day after day and year after year, and as your skin ages, these lines start to get etched in your skin. That's when frown lines get progressively deeper for people who frown all the time. Or when crow's feet stay put even after you stop smiling or squinting. Eventually, what once were dynamic wrinkles become wrinkles that are just there, even when you don't make any facial expressions.


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, trouble swallowing.
The best part of Botox is people saying that you look great, but they can’t put their finger as to why. When administered effectively, you’ll look like a brighter, smoother version of yourself, but not plastic-y. To prevent looking frozen, Dr. Tutela says to make sure your dermatologist or plastic surgeon tells you how many units they recommend. Everyone’s face is different and again, there is no magic number, but knowing your starting point will help tailor future appointments, he says. And don’t do anything until you learn the 13 things plastic surgeons will never tell you.
Injections: They're a popular topic and yet still shrouded in mystery and a veritable amount of secrecy. Most of us venture to a consultation or decide against them without actually knowing much information—how much they cost, what to expect during an appointment, or what the results will be. Because we're not willing to openly and freely discuss it (or have been taught not to), more often than not these conversations occur through a series of unanswered questions. Like sexual education, relying on abstinence is never going to be enough. We want to feel confident, look good, and make our own choices, and as such, that often leads to investing in modern skincare techniques.
Many people who experience excessive sweating, whether on their hands, hairline, or even under their breasts or butt, are turning to Botox and other neuromodulators (like Xeomin or Dysport). "They help prevent excessive sweating by acting on the sweat glands directly," says NYC board-certified plastic surgeon Z. Paul Lorenc, MD. "The neuromodulator is injected into the sweat glands to relax the muscle and help combat excessive sweating."
Once the protein stops functioning at the neuromuscular junction, it is broken down into its harmless components (amino acids) and either recycled for use in other proteins or excreted by the kidneys. "The bigger the muscle, the quicker you'll see motion return," says Rowe. "Likewise, the smaller the muscle, the longer the effect of botox lasts." It doesn't have a tolerance effect, either—your body never gets used to Botox.

Results will be evident within three to 10 days. Photographs may be taken before the procedure so that patients can check their results themselves rather than relying on their memory. It is surprising to see how many people do not recall how they looked before the procedure and are amazed at the difference when shown a picture. Prior to having the procedure done, the patient should realize that Botox does not actually erase lines but relaxes them. What this means is that deeper lines will become somewhat less deep and superficial lines will nearly disappear. This can be likened to the act of steaming a garment's wrinkles rather than ironing them.

Patients with smaller neck muscle mass and patients who require bilateral injections into the sternocleidomastoid muscle for the treatment of cervical dystonia have been reported to be at greater risk for dysphagia. Limiting the dose injected into the sternocleidomastoid muscle may reduce the occurrence of dysphagia. Injections into the levator scapulae may be associated wit h an increased risk of upper respiratory infection and dysphagia.
As you noted in your question, the effects of Botox don't last forever. For some patients the short term effects of Botox are a ‘good thing,’ as it means that trying Botox is a relatively low risk/low commitment procedure. If you don't like your Botox results, there's not much to worry about: They will fade on their own in a few months. Generally speaking, the results last between three to five months -- but the duration of the Botox effect depends on the individual and on how many Botox units were used.
Botulinum toxin (BTX) is a neurotoxic protein produced by the bacterium Clostridium botulinum and related species.[1] It prevents the release of the neurotransmitter acetylcholine from axon endings at the neuromuscular junction and thus causes flaccid paralysis. Infection with the bacterium causes the disease botulism. The toxin is also used commercially in medicine, cosmetics and research.
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