June 2024

Depressor Anguli Oris (DAO) Botox: A Quick Fix for Downturned Mouth Corners

The corners of the mouth can significantly influence one’s facial expression. When they are downturned, they can create an appearance of sadness or discontent, even when you’re feeling perfectly happy. This is often due to the action of the Depressor Anguli Oris (DAO) muscles, which pull the corners of the mouth downward. Luckily, Botox injections can effectively address this issue. Here, we explore the purpose and benefits of DAO Botox, the treatment process, recovery tips, and the longevity of the results.

What Is DAO Botox?

Botox, or botulinum toxin, is a neurotoxin that temporarily relaxes muscles by blocking the signals from nerves to the muscles. DAO Botox specifically targets the Depressor Anguli Oris muscles, which are responsible for pulling down the corners of the mouth. By injecting Botox into these muscles, the downward pull is reduced, allowing the corners of the mouth to lift slightly and create a more neutral or even upturned appearance.

Who Benefits from DAO Botox?

DAO Botox is beneficial for individuals who experience downturned corners of the mouth, which can occur naturally with aging or due to genetics. Here are some specific groups who might benefit from this treatment:

Individuals with Age-Related Downturned Mouth Corners: As we age, the DAO muscles can become more pronounced, contributing to a sad or tired appearance.

People with Genetically Downturned Mouth Corners: Some people naturally have stronger DAO muscles that cause the mouth corners to downturn.

Those Seeking a More Youthful and Pleasant Expression: A subtle lift in the corners of the mouth can make a significant difference in overall facial expression, creating a more approachable and positive appearance.

How Many Units of Botox Are Required for DAO?

The number of Botox units required for DAO treatment can vary depending on the individual's muscle strength and anatomy. Typically, each side of the mouth may require about 2 to 5 units of Botox. In total, a patient might receive around 4 to 10 units. A skilled practitioner will assess the muscle activity and tailor the dosage to achieve optimal results while maintaining natural facial expressions.

Outcomes of DAO Botox Treatment

The outcomes of DAO Botox treatment are generally very positive. Patients can expect the following benefits:

Lifted Mouth Corners: The primary outcome is a subtle lift at the corners of the mouth, reducing the appearance of a downturned expression.

Youthful Appearance: By addressing the downturned mouth corners, the treatment can contribute to a more youthful and rejuvenated look.

Improved Facial Expression: Patients often report looking happier and more approachable after the treatment.

A Quick and Convenient Treatment

One of the major advantages of DAO Botox is the speed and convenience of the procedure. The treatment typically takes about 5 to 10 minutes to complete. Here’s a brief overview of what to expect:

Consultation: The practitioner will discuss your goals and assess your facial anatomy to determine the appropriate dosage and injection sites.

Preparation: The treatment area is cleaned, and a topical numbing cream may be applied to minimize discomfort.

Injection: Using a fine needle, the practitioner injects Botox into the DAO muscles. The process is quick and relatively painless.

Tips for Recovery

Recovery from DAO Botox is straightforward, with minimal downtime. Here are some tips to ensure optimal results and a smooth recovery:

Avoid Touching the Area: Do not massage or rub the treated area for at least 24 hours to prevent the spread of Botox to unintended areas.

Stay Upright: Remain upright for at least 4 hours after the treatment to allow the Botox to settle properly.

Avoid Strenuous Activity: Refrain from vigorous exercise for 24 hours to reduce the risk of swelling and bruising.

Follow Up: Attend any scheduled follow-up appointments to assess the results and make any necessary adjustments.

Onset and Duration of Results

The onset of results from DAO Botox typically begins within 3 to 5 days, with the full effect visible after about 1 to 2 weeks. The treatment results usually last between 3 to 4 months. Regular maintenance treatments can help sustain the desired appearance, and over time, some patients may find that they require less frequent touch-ups as the muscles gradually weaken.


DAO Botox is a quick, effective, and minimally invasive treatment that can significantly improve the appearance of downturned mouth corners. By relaxing the DAO muscles, this procedure lifts the corners of the mouth, creating a more youthful and pleasant facial expression. With minimal downtime and a swift procedure time of around 5 minutes, it’s an attractive option for those seeking subtle yet impactful facial enhancements. Whether you’re looking to combat age-related changes or enhance your natural expression, DAO Botox offers a convenient and temporary solution for achieving a happier and more refreshed look.

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