Anti-wrinkle injections

Anti-wrinkle injections (botulinum toxin) for lines, jaw slimming and sweating, by a doctor

Botulinum toxin type A relaxes the muscles that cause lines and a wide jaw. Results begin in 3–7 days, peak at 2 weeks and last 3–6 months. Injected by a doctor who understands the anatomy of the facial muscles.

ForeheadFrown linesCrow's feetMasseterJawline
Illustration: expression muscles that contract repeatedly until folds form in the skin, and the injection points used to relax specific muscles

How anti-wrinkle injections work

Botulinum toxin type A is a protein that blocks the signal from the nerve to the specific muscle it is injected into, so that muscle contracts less. Lines caused by repeated movement, such as forehead lines, frown lines and crow's feet, become shallower, and muscles enlarged by heavy use, such as the jaw or calves, gradually shrink as they rest. The effect is not permanent: as the nerve forms new endings, the muscle returns to normal function within 3–6 months.

Treatable areas and what to expect

AreaHelps withApproximate unitsNotes
ForeheadHorizontal lines when raising the brows10–20Too little and the lines remain; too much and the brows drop. The doctor assesses brow position first
Frown linesVertical lines when frowning15–25Usually paired with the forehead to keep the balance
Crow's feetLines at the outer eyes when smiling8–15 per sideYour eyes still light up when you smile, because the other muscles are left alone
Eye corner / brow liftSlightly drooping brows and outer eyes2–4 per sideLifts 1–2 mm. If the eyelid skin is very loose, consider lifting treatments instead
NoseBunny lines on the bridge, or a nasal tip that drops when smiling4–8Does not make the nose higher
Gummy smileUpper lip lifting too high when smiling2–4The smile looks softer. The upper lip may feel unfamiliar at first
ChinOrange-peel dimpling, chin shortening when pursing the lips4–8Often combined with chin filler for a short chin
Mouth cornersDownturned corners that look sad2–4 per sideHelps slightly. If the corners droop from loose skin, consider filler as well
Jaw slimmingA square face from enlarged masseter muscles, jaw clenching20–40 per sideResults in 4–8 weeks as the lower face slims. Does not help if the jaw is wide from bone
Neck (Nefertiti)Tight neck bands pulling the jawline down20–40Injected into the platysma to sharpen the jawline slightly
ShouldersBulky trapezius muscles, shoulder tension25–50 per sideResults in 4–8 weeks as the shoulders slope more
CalvesCalves enlarged by muscle50–100 per sideNeeds many units and results slowly over 2–3 months. Does not help if the calves are large from fat
Underarm / palm sweatingExcessive sweating50 per sideReduces sweating for several months to around half a year. The palms may feel a weaker grip temporarily
Pores (micro-botox)Enlarged pores, oily skin, uneven texture20–40 across the faceDiluted and injected superficially into the skin without affecting expression. Lasts 2–3 months

Types and brands we use

The clinic uses only botulinum toxins registered with the Thai FDA. Brands the doctor may choose include Botox (Allergan), Dysport, Xeomin, Nabota, Botulax and Letybo. Each differs in molecular size, spread and unit equivalence, and the doctor selects according to the area, the precision required and how you have responded before. Before injecting, the box is opened so you can see the product name, lot number and expiry date, and the product is reconstituted in front of you so you can be confident you receive the agreed units.

Results over time

Treatment day15–20 minutesNumbing cream or a cold compress, then injections with a fine needle that feel like an ant bite. Small red bumps at the injection points settle within 15–30 minutes
Days 3–7Starting to workFrowning or raising the brows becomes harder and lines start to soften. Jaw and calf slimming show no change yet at this stage
Week 2Peak effectReview appointment. If any area still moves unevenly or the brows are uneven, a small adjustment can be made at this visit
Months 1–2Jaw, shoulders and calves slim downThe resting muscles gradually reduce in size and the lower face slims progressively
Months 3–6Effect gradually wears offThe muscles regain normal movement. Repeat treatment is possible from 3 months onwards. Injecting too often or with very high units may increase the chance of resistance

Aftercare

  • Do not massage, press or rub the treated area for 24 hours, so the product does not spread to neighbouring muscles
  • Avoid lying flat for the first 4 hours and avoid bending your head down for long periods on the first day
  • No strenuous exercise, saunas or alcohol for 24 hours
  • Make-up can be applied after 4 hours. Wash your face as normal with a gentle touch
  • Leave at least 1–2 weeks before laser, HIFU or facial massage
  • Attend your 2-week review
Who should not have it, and possible side effects

Not for women who are pregnant or breastfeeding, people with neuromuscular disorders (myasthenia gravis, ALS), anyone with an infection at the injection site, or anyone allergic to the product's ingredients. Tell the doctor if you take aminoglycoside antibiotics. Possible side effects include small bruises, a headache for 1–2 days, a temporary brow or eyelid droop (around 1–3%, usually improving within 2–6 weeks) and an asymmetric smile. Injection by a doctor who understands the muscle anatomy reduces these risks but cannot eliminate them entirely

Related services

Prices

Anti-wrinkle injections, per area
Forehead, frown lines or crow's feet, including numbing cream and a review appointment
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Jaw slimming, both sides
Amount according to the muscle size assessed by the doctor
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Underarm sweating, both sides
Sweat mapping before injection
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Frequently Asked Questions

Will my face look frozen or expressionless?

It depends on the dose and placement. The clinic's approach is to soften the lines while keeping your expressions. If you prefer a very still forehead, that is also an option, and the doctor will discuss it with you before injecting.

When will my face look slimmer after jaw injections?

Most people start to see a change at 4 weeks, with a clear result at 2 months. The first time may need two sessions 3–4 months apart. If the jaw is wide because of bone, the injections will help only a little.

Is it true you can become resistant with frequent injections?

The body can form antibodies to the proteins in the product. This is uncommon, but the chance rises if you inject more often than every 3 months or use very high units. The clinic therefore recommends spacing treatments and may choose a product with fewer complexing proteins for regular patients.

If I stop, will my lines be worse than before?

No. The muscles return to normal function and the lines return to where they would naturally be for your age. While the muscles were resting, the lines generally did not deepen, so you have lost nothing.

Free doctor consultation, no obligationMessage us privately on LINE or WhatsApp and the doctor will suggest the right approach for you