Downturned Mouth Explained
01Facial Anatomy and Muscle Dynamics
The DAO muscles originate from the jawbone and insert into the corners of the mouth. Their main function is to pull the mouth downward, particularly during expressions like frowning. In some individuals, these muscles become overactive or dominant, creating a constant downturned appearance.
Because the DAO interacts with other lower face muscles, including those responsible for smiling and lip movement, precision treatment is key. By gently relaxing the DAO, the opposing elevator muscles (like the zygomaticus) can work more effectively, restoring balance and allowing the natural upward curve of the mouth to reappear.
02Treatment Approach and Injection Technique
Lower Face Assessment
Treatment begins with a careful evaluation of your lower face, assessing resting expression, lip corner position, muscle dominance, and overall facial symmetry. Both static and dynamic movement patterns are analysed to ensure personalised treatment planning.
Precision Injection Method
Tiny amounts of anti-wrinkle solution are placed into the DAO muscles on each side of the mouth. Placement is exact, avoiding nearby muscles responsible for smiling and lip control. The goal is not to freeze expression but to soften the downward pull enough to let natural balance return.
This treatment can be completed in just a few minutes and requires no downtime.
03Treatment Results and What to Expect
Visible results typically appear within 5 to 10 days. The corners of the mouth lift slightly, reducing the appearance of frowning or sadness at rest. The face appears more relaxed, open, and youthful without altering your natural expressions.
Effects last around 3 to 4 months and can be maintained regularly for long-term improvement. Many patients notice that their resting face looks softer and more neutral after treatment, helping them feel more confident in social and professional settings.
04Complementary Lower Face Treatments
Marionette Line Smoothing
For patients with deeper creases extending from the mouth to the chin, DAO treatment can be combined with dermal fillers to soften marionette lines and restore smoothness across the lower face.
Chin and Jawline Harmony
In some cases, relaxing the DAO also enhances the effect of other treatments such as chin augmentation or jawline contouring. Together, these treatments support a lifted, youthful lower face profile without surgery.
05Safety and Subtlety
Injections in the lower face must be performed with care due to the complexity of muscle interactions in this region. The goal is to reduce the downward pull without affecting lip movement, speech, or natural smiling.
This treatment is performed using advanced techniques, premium-grade anti-wrinkle products (such as Bocouture by Merz), and a light touch tailored to your anatomy. Most patients experience minimal side effects, such as slight redness or sensitivity at the injection site, which resolve quickly.
Results are always reviewed to ensure natural-looking improvements and maintain full function of the surrounding muscles.
