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Neuromodulator

Anti-wrinkle injections

Anti-wrinkle injections use a neuromodulator to reduce the muscle movement that creases skin. The usual areas are the forehead, the frown lines between the brows and the crow's feet, dosed to soften movement rather than remove it.

What it is
A neuromodulator that temporarily reduces signalling at the neuromuscular junction
On site
Botox Cosmetic (保妥适) and Dysport (吉适)
Treats
Forehead lines, frown lines, crow's feet, and other movement-related creasing
Not for
Lines already etched into resting skin — those need resurfacing or support
Onset
Three to seven days, settling at around two weeks
Holds
Commonly three to four months
Downtime
None, beyond small injection marks for an hour or so

How it works

Expression lines form because a muscle folds the skin above it thousands of times. A neuromodulator interrupts the signal from nerve to muscle in the area injected, so the muscle contracts less forcefully. The skin folds less, and over time the crease it was forming softens.

The effect is temporary by design. Nerve terminals re-establish signalling over months, which is why the treatment is repeated and why dosing can be adjusted each time according to what the last round produced.

Dynamic lines and static lines

A line only present when you move is a dynamic line, and that is what neuromodulators address. A line visible with the face completely at rest has become static — the skin itself is creased. Softening the muscle slows that line from deepening, but it will not erase it.

Static lines are a resurfacing or support question, which may mean RF microneedling, laser, or filler depending on the area and depth. It is common to treat both, and to be clear about which part is doing which job.

The reason to treat earlier is this transition. Movement lines become resting lines, and the second is much harder to undo than the first.

Dosing, and looking like yourself

Most of what people dislike about these injections comes from too much in the wrong place: a forehead that cannot lift, brows that sit oddly, a face that has stopped reading as expressive. The alternative is to treat the muscles selectively and at a dose that leaves movement intact, accepting a softened line rather than no line.

The result is reviewed at around two weeks, when it has fully settled. A small top-up at that point is ordinary and is how asymmetry gets corrected.

Botox Cosmetic and Dysport

Both products on site are botulinum toxin type A and both do the same job, but they are formulated differently and are not interchangeable — the units are measured on separate scales, so a dose in one cannot be read across to the other.

Which one suits you is a matter of the area, how your muscles behave and how you have responded before. Someone who has had one for years and is content with it has no particular reason to switch.

Other uses

The same products treat a number of things that have nothing to do with wrinkles — masseter reduction for a wide lower face, calf and trapezius contouring, and excessive sweating. Those are covered under facial and body slimming.

Questions

Questions patients ask

How long do anti-wrinkle injections take to work?

The first change shows at three to seven days, and the result is fully settled at around two weeks. That two-week point is when it should be reviewed and adjusted if needed.

How long do they last?

Commonly three to four months. It varies with the area, the dose and how strongly the muscle works.

Will my face look frozen?

That is a dosing decision, not an inevitable property of the treatment. Treating selectively and at a dose that leaves movement intact softens the line while keeping expression.

Can they remove lines I already have at rest?

Not on their own. A line visible when your face is completely still is creased into the skin itself. Reducing the movement stops it deepening, but removing it needs resurfacing or support alongside.

Is there any downtime?

No. There may be small marks at the injection points for an hour or so. You are asked to stay upright and avoid rubbing the area for the rest of the day.

What is the difference between Botox and Dysport?

Both are botulinum toxin type A and both reduce the muscle movement that creases skin. Dysport tends to show a little earlier and spreads slightly more from each injection point, which some practitioners prefer over broader areas like the forehead. Their units are measured on different scales, so a dose in one does not convert directly to the other.

Which neuromodulators does Lidy Beauty use?

Botox Cosmetic (保妥适) and Dysport (吉适). Which is used depends on the area being treated, how your muscles behave and how you have responded to either one before.

Also relevant

Start with a consultation

Bring your concern rather than a treatment name. The assessment decides what is actually indicated, and what is not.