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What is Botox? — 1.2 How It Works

Types — 2.1 Brand Comparison (Botox, Dysport, Nabota, Coretox)

Treatment Areas — 3.1 Wrinkles (Forehead, Frown Lines, Crow's Feet, Lip Lines) · 3.2 Contouring (Square Jaw, Calves, Parotid Glands)

Good to Know — 4.1 Duration of Effect · 4.2 Side Effects · 4.3 FAQ (8 Most Common Questions)

To get straight to the point, Botox was originally a deadly toxin. While it is now incredibly familiar to us as a treatment for smoothing out wrinkles and thinning square jawlines, it was actually a highly fatal toxin that caused severe food poisoning when it was first discovered. How this formidable toxin became the superstar of aesthetic treatments is a truly fascinating journey.

A Story That Began with a Sausage

In the early 19th century, a German physician named Justinus Kerner witnessed a succession of patients collapsing after eating spoiled sausages. He studied this phenomenon systematically and was the first to coin the concept of "sausage toxin." Though he didn't unlock the exact mechanism of how the nervous system becomes paralyzed, he was the very first person to map and document the symptoms accurately.

Then, in 1895, Belgian bacteriologist Émile van Ermengem was investigating a mass outbreak of food poisoning when he successfully isolated the culprit bacterium. It was named ※ Clostridium botulinum, which originates from the Latin word for sausage ('botulus'). This was the defining moment when the true identity of the toxin was finally brought to light.

Clostridium botulinum*: This is an anaerobic bacterium found widely in soil and food. While it produces a powerful neurotoxin that causes botulism, this purified toxin is the valuable raw material used to make Botox.

From Weapons Research to Life-Saving Medicine

During the mid-20th century, the US government began researching botulinum toxin as a potential biochemical weapon candidate because of its extreme potency. However, this research took an unexpectedly beautiful turn.

In the 1970s and 80s, an ophthalmologist named Dr. Alan Scott was the first to apply this toxin to treat strabismus (crossed eyes). When a tiny, precise dose was injected into the muscles that control eye movement, it successfully calmed down the hyperactive nerves. It worked by gently relaxing muscles that were overly tense and contracted. This pioneering attempt is celebrated in medical history as the grand opening that proved botulinum toxin could be safely used for therapeutic medical purposes.

After this breakthrough, its applications quickly expanded far beyond ophthalmology. It started with eye and nerve disorders such as strabismus, blepharospasm (uncontrolled eyelid twitching), and hemifacial spasm. By the 1990s, it reached spastic muscles in children with cerebral palsy, cervical dystonia (a painful nerve disorder where the neck twists), chronic migraines, hyperhidrosis (excessive sweating), and overactive bladder. The beautifully simple mechanism of delivering a tiny dose to a precise spot to temporarily intercept nerve signals bridged the gap between reconstructive medicine and aesthetics, securing its status in clinical fields worldwide.

"My Wrinkles Are Gone!" — A Happy Accident

The leap into the world of aesthetic dermatology came from a wonderful stroke of luck. In the 1980s, Canadian ophthalmologist Dr. Jean Carruthers was treating a patient for eyelid spasms when the patient casually remarked, "My wrinkles around my eyes have vanished!" Recognizing the magic of this discovery, she and her dermatologist husband, Dr. Alastair Carruthers, began to explore and research this fascinating effect systematically.

The research paper they published together in 1992 officially proposed the aesthetic potential of botulinum toxin to the medical community for the very first time. This legendary discovery opened the gateway for millions, shifting the treatment from a remedy for eyelid spasms to the beloved cosmetic procedure we know today.

FDA Approval and the Road to Global Stardom

As Dr. Alan Scott's pioneering work became commercialized, pharmaceutical company Allergan received its milestone FDA Approval* in 1989 to treat strabismus and eyelid spasms. This marked the official birth of the Botox® brand we love and trust today.

FDA Approval*: This is the rigorous process by which the US Food and Drug Administration reviews the safety and efficacy of a drug or medical device before allowing it on the market. In Korea, the Ministry of Food and Drug Safety (MFDS) performs a similar protective role.

Official approval for cosmetic use came 13 years later in 2002. It was first approved for treating frown lines between the brows, and gradually expanded its indications to other areas like crow's feet and forehead wrinkles. Crow's feet received approval in 2013, forehead wrinkles in 2017, and neck lift treatments (platysma) were added in 2024. Alongside these cosmetic advancements, Botox has proven itself for medical conditions like chronic migraines, excessive sweating, strabismus, eyelid twitching, and dystonia, making botulinum toxin one of the most wonderfully versatile treatments in modern medicine.

Botox made its grand entrance to Korea in 1995 after being approved by the MFDS, and by the mid-2000s, it of course became a household name across Gangnam's premier dermatology and plastic surgery clinics. Today, its artistic range spans from jawline slimming, calf contouring, and even sweating reduction. It is proudly celebrated as one of the most widely performed aesthetic treatments globally.

From a scary toxin to food poisoning studies, military research, ophthalmology therapy, and finally the crown jewel of aesthetics—it's a beautiful journey that has unfolded over more than 150 years.

Frequently Asked Questions

Q. Where does the name "Botox" come from?

It is a neat blend of the words "Botulinum Toxin." While Allergan registered it as a trademark, it has become so widely loved and popular that it is now used as a common noun for the wrinkle-relaxing treatment itself.

Q. Is it truly safe to inject a "toxin"?

The secret is all in the dose! In tiny, precise quantities, botulinum toxin only works to gently and temporarily block nerve signals in targeted muscles, and it is naturally, safely broken down by your body after several months. Its safety profile at FDA-approved concentrations has been beautifully proven over decades of clinical use. Of course, the artistic touch and precise dosing of an experienced medical professional make all the difference.

Q. How is Botox different from filler?

Botox works by gently relaxing overactive muscles to smooth away wrinkles, whereas dermal fillers work by restoring volume to lift and plump hollow areas. Because they have entirely different mechanisms of action, your treatment plan will be uniquely tailored depending on your personal beauty goals.

Recommended Reads

• How long does Botox last, and why does it differ for everyone?

• What exactly happens in the muscle after a Botox treatment?

• Dysport vs. Botox: They are both botulinum, but what sets them apart?

• Botox, Dysport, and Nabota: Understanding the differences