Face treatments
Anti-Wrinkle Injections in Knightsbridge: A Complete, Honest Guide
How botulinum toxin actually works, the areas it treats, "baby Botox" versus a fuller dose, onset and how long it lasts, safety and the frozen-face myth, how it differs from filler, and realistic London pricing.
By Fatemeh, Founder & Lead Practitioner, Levirgo Aesthetics Clinic 15 min read
Reviewed December 2025 
How anti-wrinkle injections work
Botulinum toxin blocks the nerve signal that tells a muscle to contract. Injected into a small, specific muscle — say, the frontalis muscle that raises your eyebrows — it stops that muscle contracting as forcefully, so the skin above it stops folding into a line every time you raise your brows. The muscle itself is unaffected structurally; the effect wears off gradually as nerve signalling recovers, typically over three to four months.
It only treats lines caused by movement
A "dynamic" line (visible only when you move the muscle) responds well. A "static" line (still visible on a still face, etched into the skin over years) is only partially softened — it needs skin-quality or resurfacing treatment as well.
Areas treated
| Area | What it softens | Typical units (varies by brand & person) |
|---|---|---|
| Forehead (frontalis) | Horizontal forehead lines | 10–20 units |
| Frown / glabella | Vertical "11" lines between the brows | 15–25 units |
| Crow’s feet | Lines radiating from the outer eye | 10–15 units per side |
| Brow lift (small dose) | Subtle lift by relaxing brow depressors | 4–8 units |
| Bunny lines | Nose-scrunch lines | 4–8 units |
| Lip flip (small dose) | Slight upper-lip roll for a fuller look | 2–4 units |
| Jaw (masseter) | Slims a square jaw; helps teeth grinding | 20–30 units per side |
| Neck bands (platysma) | Softens vertical neck cords | 20–40 units total |
| Underarms (hyperhidrosis) | Reduces excessive sweating | 50 units per side |
Unit numbers are illustrative and brand-specific — your practitioner assesses your muscle strength and goal individually.
“Baby Botox” vs a fuller dose
| "Baby Botox" (lower dose) | Standard/fuller dose | |
|---|---|---|
| Expression | More natural movement retained | Smoother, less movement in the area |
| Onset feel | Subtle, softer | More pronounced |
| Duration | Often 8–10 weeks | Often 12–16 weeks |
| Best for | First-timers, subtle preference, active performers/actors | Deeper lines, those wanting maximum smoothness |
You can move between the two over time as your preference becomes clear — there’s no need to commit permanently to either.
Onset, peak and how long it lasts
Illustrative — individual metabolism, muscle strength and dose affect both onset and how long the effect lasts.
Most people notice softening from around day 3, with the full effect settled by two weeks — which is when your practitioner should assess and offer a small top-up if needed. The effect then fades gradually, usually giving 3–4 months of visible benefit before another session.
The “frozen face” myth
A stiff, expressionless or "surprised" look is not an inevitable side effect — it’s almost always the result of too much product, product placed in the wrong muscle, or not accounting for how your particular muscles balance each other (for example, over-treating the forehead without addressing the brow depressors can cause a heavy, low brow).
How a good injector avoids it
Conservative starting doses, assessing your resting and animated face together, respecting facial asymmetry rather than forcing symmetry, and reviewing at two weeks before adding more. You can always add a touch-up; you can’t easily undo an overdone result before it wears off.
Get a natural, well-judged result
Book a consultation. We’ll assess your face at rest and in motion, recommend a conservative starting dose, and review at two weeks.
Anti-wrinkle injections vs filler vs skin boosters
| Anti-wrinkle injections | Dermal filler | Skin boosters | |
|---|---|---|---|
| Fixes | Expression lines from muscle movement | Volume loss and contour | Skin quality — hydration, elasticity, glow |
| Mechanism | Relaxes a specific muscle | Adds structural gel volume | Stimulates skin repair |
| Typical duration | 3–4 months | 9–18 months | ~6 months |
These are frequently combined — for example, toxin for the crow’s feet, filler for cheek volume, and a booster for overall skin quality.
Safety and who should wait
- Common: mild bruising or redness at injection points, a brief headache, temporary mild asymmetry while settling.
- Uncommon: a heavy or drooping eyelid/brow if toxin migrates — usually temporary and improves as the effect wears off; a skilled injector minimises this risk with correct placement.
- Not suitable: pregnancy or breastfeeding, certain neuromuscular conditions (e.g. myasthenia gravis), known allergy to the product, active infection at the injection site.
- Avoid vigorous exercise, lying flat, facials or massage over the area, and alcohol for 24 hours after treatment.
What it costs in London
| Treatment | Typical London price |
|---|---|
| One area (e.g. frown or forehead) | £150–£280 |
| Two areas | £220–£380 |
| Three areas (upper face) | £280–£450 |
| Jaw slimming (masseter) | £300–£500 |
| Underarm sweating | £450–£700 |
Pricing reflects units used and brand, not just “per area” — always confirm what’s included before you book.
How Levirgo approaches anti-wrinkle treatment
- Medical injectors who assess your face at rest and in movement before recommending a dose.
- Conservative starting doses with a two-week review and small top-up if needed.
- Named, licensed toxin brands — you’re told exactly what’s used and how many units.
- Balanced treatment planning to avoid the "frozen" look, respecting natural asymmetry.
- Honest advice on when filler or a skin booster would achieve your goal better than more toxin.
- CQC-registered clinic in Knightsbridge with a 24-hour aftercare contact.
Frequently asked questions
How much do anti-wrinkle injections cost in Knightsbridge?
One area (such as the frown or forehead) is typically £150–£280 in London, two areas £220–£380, and three areas £280–£450. Jaw slimming is £300–£500 and underarm sweating treatment £450–£700. Pricing reflects the units used, not just a flat "per area" fee.
How long does it take to work?
Most people see softening from around day 3, with the full effect settled by about two weeks — which is when your practitioner should review and offer a small top-up if an area hasn’t responded fully.
How long does it last?
On average 3–4 months, though "baby Botox" (a lower dose) often lasts 8–10 weeks and a fuller dose 12–16 weeks. Regular, consistent treatment can gradually extend the gap for some people.
Will I look frozen or expressionless?
Not if it’s dosed and placed correctly. A frozen look comes from too much product or the wrong muscles being treated, not from the toxin itself. Conservative starting doses and a two-week review protect against this.
What is "baby Botox"?
A lower dose that softens lines while keeping more natural expression, usually lasting a bit less long than a fuller dose. It suits people wanting a subtle result or trying the treatment for the first time — you can move to a fuller dose later if you prefer more smoothness.
Can it get rid of all my wrinkles?
No — it only relaxes the muscle movement that causes "dynamic" expression lines. Static wrinkles already etched into resting skin need skin-quality treatments (boosters, resurfacing) or filler for volume-related lines, sometimes alongside toxin.
What’s the difference between anti-wrinkle injections and filler?
Anti-wrinkle injections relax a muscle to soften expression lines. Filler adds volume to restore contour or fill folds caused by lost structure. They treat different problems and are often used together — for example toxin for crow’s feet and filler for cheek volume.
Does it hurt?
The injections use a very fine needle; most people describe it as a series of quick pinpricks. No anaesthetic is usually needed. Mild bruising or redness at the injection points can occur and settles within days.
Who shouldn’t have anti-wrinkle injections?
It’s avoided in pregnancy and breastfeeding, in certain neuromuscular conditions such as myasthenia gravis, with a known allergy to the product, or over active infection at the injection site. A full history is taken at consultation.
Can it help with sweating or teeth grinding?
Yes — injected into the underarms it reduces excessive sweating (hyperhidrosis), and injected into the masseter muscle it can ease teeth grinding and jaw tension while also giving a subtle jaw-slimming effect.
Levirgo Aesthetics Clinic · Knightsbridge
Anti-wrinkle injections, done naturally, in Knightsbridge
Medical injectors, conservative dosing and a two-week review — never a rushed, one-size-fits-all approach. No obligation to proceed.
Sources & further reading
This article is general information about botulinum toxin ("anti-wrinkle") injections and is not medical advice. Suitability, dosing and results must be individualised by a qualified medical practitioner after assessment. Prices are indicative London ranges for 2026 and are confirmed in writing after consultation.