Marionette Lines & Mouth Corner Sagging
What Are Marionette Lines? Marionette lines: the creases running from mouth corners toward the chin Marionette lines are the vertical creases running from mouth corners toward the chin—named after a puppet's hinged jaw. Unlike smile lines, they're static: visible all the time, making you look sad or disapproving even at rest. They form from DAO muscle activity pulling corners down, volume loss in the lower face, skin laxity, and jowling from above.
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PRP London Clinic Medical Team
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Last reviewed: January 20, 2026
What Are Marionette Lines?


Who Experiences This Condition?
Common in
- •Individuals over 40 as lower face volume depletes and skin loses elasticity
- •Those with overactive DAO (depressor anguli oris) muscle pulling corners down
- •People with naturally downturned mouth corners (genetic)
- •Those who have lost significant facial volume or weight
- •Smokers—vertical lip lines and lower face ageing accelerated
- •People with thin skin in the lower face area
- •Those already experiencing jowling (related conditions)
Factors Affecting Severity
- •DAO muscle strength and habitual activity
- •Degree of jowling and lower face descent
- •Mid-face volume and support from above
- •Skin thickness and elasticity
- •Chin and jaw bone structure
- •Habitual facial expressions
- •Sun damage and smoking history
Understanding Why Marionette Lines Form

The DAO Muscle
The depressor anguli oris (DAO) is a small muscle at each corner of your mouth. Its job is to pull the corners down—useful for expressing sadness or disapproval. But over decades of activity, this repetitive pulling creates permanent creases: marionette lines.
In some people, the DAO is overactive, constantly pulling the corners down even at rest. This is why DAO Botox can be so effective—it relaxes this pull, allowing the corners to return to neutral or even lift slightly.
Volume Loss Below
The area between your mouth and chin naturally loses volume with age. This creates a 'valley' that the skin folds into. Filling this volume can lift the crease from beneath.
Descent From Above
Jowling and mid-face descent push tissue downward, contributing to the fold. This is why treating marionette lines in isolation often fails—you need to address the descent from above.
The Crease Itself
Once a crease forms, skin tends to keep folding in the same place—like a well-worn fold in paper. Early intervention prevents this 'memory' from becoming permanent.
Botox vs Filler for Marionette Lines: Which Is Better?
This is one of the most searched questions about marionette lines—and the answer is: it depends on the cause.
When to Use Botox (DAO Relaxation)
- Your mouth corners are actively pulled down (you can see the DAO muscle engage)
- You have a 'sad' resting expression even without deep lines
- The lines are relatively mild but the corners are noticeably downturned
- You want a subtle lift without adding volume
What Botox does: Relaxes the DAO muscle, allowing the corners to lift naturally. Creates a subtle 'corner flip.' Does NOT fill the line itself.
When to Use Filler
- You have volume loss creating the crease
- The lines are moderate to deep
- You need structural support in the lower face
- Botox alone hasn't provided enough improvement
What filler does: Directly fills the crease, restores lost volume, provides structural support. Does NOT address muscle activity.
When to Use Both
Many patients benefit from combination treatment:
- Botox relaxes the muscle pulling the corners down
- Filler softens the existing crease and restores volume
- The combination addresses both cause and symptom
We assess your specific anatomy to recommend the right approach—sometimes it's Botox alone, sometimes filler alone, often both.
Why Treating Marionette Lines Alone Often Fails
If you've had marionette line filler before without great results, here's why:
The Isolated Approach Problem
Many practitioners simply inject filler directly into the marionette line and call it done. But this ignores WHY the line formed:
- If jowls are pushing tissue down, filling the line is fighting a losing battle
- If mid-face descent is contributing, the pressure from above remains
- If the DAO is actively pulling, muscle activity deepens the crease again
- If the chin lacks projection, the whole lower face drapes differently
The Holistic Approach
Effective marionette line treatment often involves:
- Mid-face assessment: Do you need cheek filler to lift from above?
- Jowl assessment: Are jowls contributing? Address them together
- DAO assessment: Would Botox to the corners help?
- Chin assessment: Would chin filler change how skin drapes?
- Then: Direct line treatment with appropriate filler
This is why we take time to assess the whole lower face before recommending treatment. The goal is lasting, natural-looking improvement—not a temporary fix that fails because the cause wasn't addressed.
Treatment Options for Marionette Lines

| Treatment | What It Does | Best For | Duration |
|---|---|---|---|
| DAO Botox 'Corner Lift' | Relaxes muscle pulling corners down | Downturned corners, mild lines, prevention | 3-4 months |
| Direct Line Filler | Fills the crease directly | Moderate-deep lines, volume loss | 9-12 months |
| Cheek Filler Mid-face lift | Lifts mid-face, reduces descent | Lines caused by mid-face descent | 12-18 months |
| Chin Filler | Improves projection, changes drape | Weak chin contributing to lines | 12-18 months |
| Sylfirm X | Tightens skin, stimulates collagen | Skin laxity, prevention, maintenance | Cumulative (course) |
Combination protocols: Most patients benefit from multiple treatments. A typical approach might combine DAO Botox + direct line filler + cheek support for comprehensive improvement.
Can Marionette Lines Be Prevented?
While you can't stop ageing, you can significantly slow the formation and deepening of marionette lines:
Preventive Measures
- Sun protection: UV damage is the biggest controllable factor in skin ageing. Daily SPF is non-negotiable.
- Don't smoke: Smoking accelerates lower face and perioral ageing dramatically.
- Maintain weight: Yo-yo dieting affects facial volume.
- Retinoids: Prescription retinoids help maintain collagen and skin thickness.
Early Intervention ('Prejuvenation')
Treating early signs before deep lines form is far more effective than waiting:
- Mild downturning: DAO Botox can prevent the crease from forming
- Early volume loss: Small amounts of filler maintain structure
- Skin quality: Sylfirm X or Polynucleotides keep skin resilient
Maintenance After Treatment
Once treated, maintaining results is easier than the initial correction:
- DAO Botox every 3-4 months prevents muscle memory
- Filler top-ups as needed (usually 9-12 months)
- Annual RF treatments for skin quality
The best time to prevent deep marionette lines is before they form. The second best time is now.
Why Choose PRP London Clinic for Marionette Lines
Marionette lines require a nuanced approach—not just injecting filler into the crease. Here's why patients trust us:
Holistic Assessment
We don't just see the line—we assess why it formed. Mid-face descent? DAO activity? Chin projection? Jowling? Understanding the cause determines the treatment.
Combination Expertise
Effective treatment often requires multiple modalities—Botox for muscle, filler for volume, RF for skin quality. We design personalised protocols that address all contributing factors.
Natural Results Focus
The goal is to look refreshed and less tired—not 'done.' We avoid overfilling the lines (which looks unnatural) and instead create balanced, harmonious improvement.
GMC-Registered Medical Team
The lower face is anatomically complex. All treatments are performed by GMC-registered doctors with specialist training in facial anatomy and aesthetics.
Honest About Expectations
Very deep, long-standing marionette lines may not completely disappear. We'll tell you what's realistically achievable and create a plan for gradual improvement.
Premium Products Only
We use FDA-approved fillers (Juvederm, Restylane) and botulinum toxin products (Botox, Azzalure) for optimal safety and results.
Treatment Process
Our marionette line treatment follows a holistic, cause-based approach:
Component 1: DAO Muscle Relaxation (Botox) If the DAO muscle is actively pulling your mouth corners down, a small amount of botulinum toxin can relax this muscle. This creates a subtle lift of the corners—not a frozen smile, just a neutral or slightly upturned position. This is often called a 'DAO flip' or 'corner lift.'
Component 2: Direct Line Filling Dermal filler placed directly into the marionette crease softens the line and restores lost volume. We use soft, flexible fillers designed for this mobile area.
Component 3: Structural Support Addressing the root cause often means:
- Cheek filler — Lifting the mid-face reduces descent that creates the fold
- Chin filler — Improving projection changes how skin drapes
- Pre-jowl filling — Smoothing the transition along the jawline
Component 4: Skin Quality Sylfirm X or Polynucleotides to improve skin elasticity and prevent further creasing.
Combination Approach Most patients benefit from a combination—we create personalised protocols based on what's actually causing your lines.
Diagnosis & Assessment
Marionette lines are assessed through clinical examination of the lower face. We evaluate line depth and extent, DAO muscle activity (asking you to grimace to see the muscle pull), mid-face volume and support, presence of jowling, chin projection and bone structure, and overall lower face harmony. Understanding whether your lines are primarily caused by muscle activity, volume loss, or skin laxity—or a combination—determines the most effective treatment approach.
Prevention & Management
Lifestyle Tips
- •Sun protection — UV damage accelerates skin ageing and collagen loss
- •Don't smoke — smoking dramatically worsens lower face and lip ageing
- •Maintain stable weight — weight fluctuations affect facial volume
- •Consider early intervention — treating mild lines is easier than deep ones
- •Address related concerns — treating jowls and mid-face together prevents progression
Home Care
- •Makeup techniques can soften the appearance (highlighting above the line)
- •Skincare with retinoids helps maintain skin quality
- •No cream will fill or lift the lines—professional treatment is required
- •Good hydration helps skin look plumper generally
- •Smiling naturally lifts the mouth corners and counteracts the static appearance
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