Depressor Anguli Oris, or DAO for short, is one of the most overlooked muscles. This is the muscle that's responsible for lowering the corners of the lips and mouth, If this muscle is too active, then it can start to tug down on the corner of the mouth leading to the formation of marionette lines, as the overlying skin is constantly being pulled down by the overactive muscle. As we age, these lines will become more and more pronounced. | Koko Face Yoga

The depressor anguli oris muscle, also known as the DAO muscle, plays a significant role in facial expressions, particularly those associated with negative emotions such as sadness, frustration, or disappointment. This muscle is responsible for pulling down the corners of the mouth, creating a downward expression.Emotions are often stored in the body, including facial muscles, due to stress, tension, or past experiences. Over time, these emotions can become trapped, leading to physical manifesta

The depressor anguli oris (DAO) are facial muscles that pull down the corners of your mouth and causes frowning or looking sad/mad. A small dose of Botox in this area will relax the muscle, allowing the smile to raise, and preventing the downward pull of the lower face- which also adds to the formation of marionette lines  Corrective and preventative lower face Botox is one of my favorite tools in combating gravity of the lower face!! | Radiant Aesthetics | Facebook

When injecting the depressor anguli oris (DAO), depth isn’t just important — it’s protective. The depressor labii inferioris muscle lies beneath the DAO, attaching to the bone. If your injection is too deep and low, you risk hitting the wrong muscle — a common cause of lower lip ptosis. ❌ ✅ The safer, more effective approach? Injecting more superiorly and superficially, keeping your toxin in the correct plane and away from the DLI. Understanding the anatomical layering here helps you avoid compl