Downturned mouth corners can make the face look tired, sad or more serious — even when that is not how you feel.
For some people, the change becomes noticeable gradually with age. For others, the corners of the mouth may naturally turn down because of their facial anatomy and muscle movement.
But droopy mouth corners do not always have the same cause.
Muscle pull, loss of facial support, changes in volume and skin laxity can all contribute. This means that improving downturned mouth corners is not simply a matter of treating the lips themselves.
Understanding what is causing the change is the first step towards choosing an appropriate non-surgical treatment approach.
What Are Droopy or Downturned Mouth Corners?
The point where the upper and lower lips meet is known as the oral commissure.
When the oral commissures sit lower or point downwards, the mouth may appear to have a naturally sad or serious expression at rest.
This can sometimes occur together with marionette lines — the folds that extend downwards from the corners of the mouth towards the jawline.
Although the two concerns often appear together, they are not exactly the same.
A person can have downturned mouth corners without prominent marionette lines, while another person may develop deeper folds because of changes in facial volume and support.
Research into lower-face ageing shows that the appearance of the mouth corners and marionette area can be influenced by several factors, including muscle activity, changes in facial fat, skin ageing and loss of structural support.
Why Do the Corners of the Mouth Start to Droop?
There is rarely a single reason.
The lower face is a complex area where skin, fat, muscles, ligaments and bone all contribute to facial shape.
Several changes may occur at the same time.
1. Downward Muscle Pull
One muscle that can influence the position of the mouth corners is the depressor anguli oris, or DAO.
As its name suggests, this muscle helps pull the corners of the mouth downwards.
In some people, the DAO is relatively active, creating a stronger downward pull when the face is at rest or during certain expressions.
Research and clinical consensus identify DAO activity as one contributor to downturned oral commissures.
However, muscle activity is only one part of the picture.
2. Loss of Support Around the Mouth
The tissues around the lips and lower face depend on support from surrounding fat compartments, connective tissues, teeth and underlying facial structure.
With age, these areas can change.
Loss or redistribution of facial volume may reduce support around the mouth corners, making them appear more sunken or turned down.
Changes in the jaw and other deeper structures may also influence how the overlying soft tissue sits.
3. Marionette Lines
As support around the lower face changes, folds may develop from the corners of the mouth towards the chin and jawline.
These are commonly called marionette lines.
They can make downturned mouth corners appear more noticeable by creating a visual continuation of the downward direction of the mouth.
Marionette lines themselves can result from a combination of volume changes, ligamentous support, muscle movement, facial fat and skin ageing rather than simply being a surface wrinkle.
4. Skin Laxity and Lower-Face Sagging
Skin and connective tissues gradually change with age.
As firmness decreases, the tissues of the cheeks and lower face may shift downwards. Early jowling can then add weight around the mouth and jawline.
This can make the lower face appear heavier and further emphasise the downward direction of the mouth corners.
5. Natural Facial Anatomy
Not every downturned mouth is caused by ageing.
Some people naturally have lower-positioned mouth corners because of their facial structure, lip shape or muscle pattern.
For this reason, a treatment that works well for one person with droopy mouth corners may not be appropriate for another.
Can Droopy Mouth Corners Be Improved Without Surgery?
For suitable patients, several non-surgical approaches may be considered.
The appropriate option depends on what is contributing most to the appearance.
A doctor may assess whether the main issue is:
- Downward muscle activity
- Loss of structural support
- Volume changes
- Marionette lines
- Skin laxity
- Lower-face sagging
- Or a combination of several factors
The aim is not necessarily to make the corners of the mouth point upwards.
Instead, treatment may focus on improving the factors creating the downward appearance while maintaining natural movement and facial proportions.
Relaxing Excessive Downward Muscle Pull
When strong DAO activity is a significant contributor, a doctor may consider a small amount of botulinum toxin to reduce excessive downward muscle pull.
By weakening the downward action of the DAO, the balance between the muscles that lift and depress the mouth corners may change.
This can help soften a downturned appearance in appropriately selected patients.
However, the lower face contains several small muscles positioned close together and involved in important movements such as speaking, smiling and controlling the lower lip.
Precise assessment and placement are therefore important. Lower-face botulinum toxin treatment requires careful consideration because unwanted spread into neighbouring muscles can affect facial movement or smile symmetry.
It is also important to recognise that relaxing the DAO does not correct volume loss or significant skin laxity.
If several factors are contributing, muscle treatment alone may not address the whole concern.
Restoring Support Around the Mouth and Lower Face
When loss of support or volume contributes to the downward appearance, dermal fillers may be considered.
Hyaluronic acid fillers can be used selectively to support areas around the mouth, marionette region, chin or lower face depending on the individual’s anatomy.
The aim is not simply to inject directly into a line.
In some patients, restoring support in another part of the lower or mid-face may reduce the appearance of the fold or mouth-corner depression more naturally than treating the visible crease alone.
Clinical literature on lower-face rejuvenation similarly emphasises assessing underlying structural and volume changes before deciding where filler should be placed.
The amount, type and placement of filler depend on facial anatomy and should be assessed individually.
Addressing Skin Laxity Around the Lower Face
If the mouth corners appear more downturned because the lower face has begun to sag, treatment may need to address skin and tissue laxity rather than the mouth itself.
Energy-based treatments may be considered for suitable patients.
Radiofrequency Skin Tightening
Radiofrequency treatments use controlled thermal energy to heat selected tissue and support collagen remodelling.
For patients with early lower-face laxity, treatments such as XERF monopolar RF may be considered to address areas such as the cheeks, jawline and lower face.
Rather than changing the mouth muscles or adding volume directly around the lips, the aim is to improve the surrounding tissue support where laxity is contributing to the overall appearance.
Micro-Focused Ultrasound
Micro-focused ultrasound treatments such as Ultherapy PRIME use focused ultrasound energy at selected tissue depths.
For suitable patients, ultrasound may be considered when deeper tissue laxity contributes to reduced lower-face and jawline definition.
RF and ultrasound work differently, and one is not automatically better than the other.
The appropriate approach depends on facial anatomy, the location of laxity and the treatment goal.
What If More Than One Factor Is Causing the Problem?
This is common.
For example, one person may have:
- Strong downward DAO activity
- Mild volume loss around the mouth
- Early lower-face laxity
Treating only one of these factors may therefore produce a limited change.
In selected patients, a doctor may consider a combination approach, addressing different layers or contributing factors separately.
That might mean addressing muscle activity while also improving structural support or skin laxity.
This does not mean that more treatments are always better.
The goal is to identify the main contributors and avoid treating areas that do not need correction.
Droopy Mouth Corners vs Marionette Lines
These two terms are often used interchangeably online, but they describe slightly different concerns.
Droopy mouth corners refer primarily to the downward position or appearance of the oral commissures.
Marionette lines are the folds that extend from the mouth corners towards the chin and jawline.
They often occur together because similar age-related changes can contribute to both.
However, someone with strong downward muscle pull may have downturned mouth corners without deep marionette lines.
Another person may have relatively neutral mouth corners but visible marionette folds because of volume loss and tissue descent.
This distinction matters because the treatment approach may be different.
Why Facial Assessment Matters
When someone asks, “How do I lift the corners of my mouth?”, it can be tempting to look for one specific procedure.
But the more useful question is:
Why do my mouth corners look downturned?
A doctor may assess:
- Mouth position at rest
- Facial movement when smiling and speaking
- DAO and surrounding muscle activity
- Marionette lines
- Volume around the mouth and chin
- Mid-face and lower-face support
- Skin laxity
- Jowling
- Jaw and chin structure
Assessment of the entire lower face is important because changes in one area can influence the appearance of another. Expert guidance on lower-face rejuvenation similarly recommends considering structural support, facial volume, muscle activity and skin laxity together rather than treating a visible line in isolation.
Can Skincare Lift Downturned Mouth Corners?
Skincare remains important for maintaining skin quality, hydration and protection from sun-related ageing.
However, skincare cannot substantially change muscle pull, restore deeper facial volume or reposition tissues that have become lax.
For very early changes, improving skin quality may make the area look smoother and healthier.
But when the downward appearance is mainly caused by muscles, structural changes or tissue laxity, skincare alone is unlikely to address the underlying cause.
Choosing a Natural-Looking Approach
The mouth is one of the most expressive areas of the face.
It moves constantly when we speak, eat, smile and communicate.
For this reason, the goal of lower-face aesthetic treatment should not simply be to create an obviously “lifted” mouth corner.
A more natural approach considers how the face looks both at rest and in motion, while preserving individual facial characteristics.
Treatment should therefore be tailored to the anatomy rather than based on a fixed number of injections, treatment shots or areas.
Improving Droopy Mouth Corners at Healthsprings
At Healthsprings Laser & Aesthetic Clinic in Singapore, treatment for droopy or downturned mouth corners begins with a medical assessment of the lower face.
Depending on the underlying cause, the doctor may consider approaches that address:
- Excessive downward muscle activity
- Loss of facial support or volume
- Marionette lines
- Lower-face skin laxity
- Changes in overall facial contour
Because several factors can contribute to the same outward appearance, the recommended treatment will vary between individuals.
Concerned about droopy mouth corners or changes around your lower face?
Speak with our doctors at Healthsprings Laser & Aesthetic Clinic, Liat Towers, Orchard Road, for an assessment and personalised treatment recommendation.