Botox (Botulinum Toxin) in Seoul

What is botox?

Botox is the common name for botulinum toxin type A, a purified protein used in very small, precise doses. It works by blocking the release of acetylcholine, the chemical messenger that tells a muscle to contract. The treated muscle relaxes, and the lines it creates in the skin above soften.

Several licensed brands of botulinum toxin exist, and they differ slightly in formulation. Dr. Kim will explain which product he uses and why. What matters most is dose, placement and judgement.

What can botox treat?

• Frown lines between the brows, created by the corrugator and procerus muscles.
• Horizontal forehead wrinkles , created by the frontalis muscle.
• Crow's feet at the outer eye, created by the orbicularis oculi.
• Masseter reduction, relaxing an enlarged jaw muscle to slim the lower face.
• Smaller uses such as a gummy smile or chin dimpling, when appropriate.

Botox treats lines caused by movement, called dynamic lines. It does not fill static lines etched into the skin at rest, restore volume or lift sagging tissue. Deep static lines may need skin treatments or dermal filler as well.

Who is it for, and who is it not for?

Botox may suit you if you have expression lines that bother you, or a square lower face from an enlarged masseter. It is not suitable during pregnancy or breastfeeding, with certain neuromuscular conditions, or with infection at the injection site. Some antibiotics and medications can interact with it, so a full medication history is needed.

A specific caution concerns the forehead. Many people with heavy upper eyelids or low brows raise their brows all day to see more clearly. Relaxing the frontalis in these patients can make the brows drop and the eyes feel heavier. Dr. Kim checks for this before treating the forehead, and in some cases suggests addressing the cause through an endoscopic forehead lift or eyelid surgery instead.

How Dr. Kim approaches botox

At Will Be, injectable treatments are assessed and performed by Dr. Kim Jun-young himself, the same surgeon who performs the clinic's operations. There is no hand-off to another injector. That matters because the judgement behind a good injectable result is surgical judgement: understanding the layers of the face, where vessels and nerves run, and what a treatment can and cannot achieve compared with surgery. When an injectable is not the right answer, you will be told so.

Dr. Kim watches how your face moves before deciding where to inject. The aim is softer lines with preserved expression: you should still look like yourself when you smile, frown or show surprise, just with less creasing. Doses are tailored to your muscle strength and to the result you want, from very natural softening to a stronger effect.

How long does botox last?

Effects begin to appear within about three to seven days and reach their peak at around two weeks. For expression lines, results typically last around three to four months, as nerve endings gradually form new connections and the muscle regains movement. Masseter reduction often lasts longer, commonly around four to six months, and repeated treatments may lengthen the interval as the muscle becomes smaller.

Botox does not last indefinitely, and it should not. Its temporary nature is part of what makes it safe and adjustable. Regular treatment every few months is usual for those who want to maintain the effect.

Before your appointment

Preparing for botox is simple, but a few steps help. Tell Dr. Kim about your medical history, allergies, medications and any previous injectables or surgery in the area, including the product names if you know them. Blood thinners, aspirin, some anti-inflammatories, fish oil, vitamin E and certain supplements can increase bruising; do not stop prescribed medication without medical advice, but mention everything. If you have an important event, plan treatment at least two weeks beforehand so that any swelling or bruising has settled and the result can be reviewed. Arrive without makeup on the treatment area if possible.

What happens during treatment and afterward?

• The face is cleaned and injection points are marked.
• Tiny injections are made with a very fine needle; most people feel only brief pinpricks.
• Stay upright for about four hours, avoid rubbing the treated areas, and skip strenuous exercise, saunas and facial massage for the rest of the day.
• A review around two weeks after treatment allows small adjustments if needed.

Risks and how they are minimised

Common side effects include small bruises, mild headache and temporary tenderness. Less commonly, the effect can spread to nearby muscles, causing a heavy brow, a drooping eyelid, asymmetry or an unnatural smile. These effects are temporary and usually improve over weeks. After masseter treatment, chewing may feel weaker for a while. Rarely, allergic reactions occur. With frequent high doses, some people develop resistance, where the toxin becomes less effective.

Dr. Kim reduces these risks through precise knowledge of facial muscles, conservative dosing, correct depth and placement away from structures such as the eyelid-lifting muscle, and by avoiding unnecessarily frequent repeat doses.

Masseter botox: slimming the lower face

The masseter is the thick chewing muscle at the angle of the jaw. In some people, especially those who clench or grind their teeth, it becomes enlarged and makes the lower face look square or wide. Botox injected into the lower part of the masseter reduces its activity, and over about four to eight weeks the muscle becomes smaller, softening the jaw angle. The effect develops slowly, so photographs before and at around two months are more useful than a mirror in the first weeks.

Not every wide lower face is muscular. Fat, bone shape and sagging jowls also contribute, and botox will not change those. Dr. Kim asks you to clench while he feels the muscle, which quickly shows how much of the width it accounts for.

Botox and filler: what is the difference?

Botox relaxes muscles; filler adds volume. They often work well together, but they solve different problems. The comparison of botox vs filler explains when each is used.

Treatment during a visit to Korea

Botox requires almost no downtime, so it fits easily into a short trip. Effects take about two weeks to peak, so treating early in your stay allows a review, or a photo review after you return home. If you are also planning surgery during the same trip, Dr. Kim will advise on sequencing, since injectables are usually kept apart from areas that will swell after an operation. The page on how long to stay in Korea can help you plan your time.

After you return home, you can send photographs to the clinic if anything concerns you, and Dr. Kim will review them himself. For any sudden or severe symptom after an injectable, seek local medical care promptly as well as contacting the clinic.